strip out thinking tags in message history for qwen3 & r1 (#10490)

* strip out thinking tags in message history for qwen3 & r1

This is in advance of "proper" support where we'll make reasoning
configurable and we'll parse out thinking/reasoning tags and provide
them to the caller. These models expect there to be no thinking tags in
the message history, so this should improve quality

* parse model names instead of hacky prefix check

CMakePresets.json

@@ -21,14 +21,16 @@
       "name": "CUDA 11",
       "inherits": [ "CUDA" ],
       "cacheVariables": {
-        "CMAKE_CUDA_ARCHITECTURES": "50;52;53;60;61;70;75;80;86"
+        "CMAKE_CUDA_ARCHITECTURES": "50;52;53;60;61;70;75;80;86",
+        "CMAKE_CUDA_FLAGS": "-Wno-deprecated-gpu-targets"
       }
     },
     {
       "name": "CUDA 12",
       "inherits": [ "CUDA" ],
       "cacheVariables": {
-        "CMAKE_CUDA_ARCHITECTURES": "50;60;61;70;75;80;86;87;89;90;90a;120"
+        "CMAKE_CUDA_ARCHITECTURES": "50;60;61;70;75;80;86;87;89;90;90a;120",
+        "CMAKE_CUDA_FLAGS": "-Wno-deprecated-gpu-targets"
       }
     },
     {

README.md

@@ -285,7 +285,7 @@ See the [API documentation](./docs/api.md) for all endpoints.
 - [Bionic GPT](https://github.com/bionic-gpt/bionic-gpt)
 - [HTML UI](https://github.com/rtcfirefly/ollama-ui)
 - [Saddle](https://github.com/jikkuatwork/saddle)
-- [TagSpaces](https://www.tagspaces.org) (A platform for file based apps, [utilizing Ollama](https://docs.tagspaces.org/ai/) for the generation of tags and descriptions)
+- [TagSpaces](https://www.tagspaces.org) (A platform for file-based apps, [utilizing Ollama](https://docs.tagspaces.org/ai/) for the generation of tags and descriptions)
 - [Chatbot UI](https://github.com/ivanfioravanti/chatbot-ollama)
 - [Chatbot UI v2](https://github.com/mckaywrigley/chatbot-ui)
 - [Typescript UI](https://github.com/ollama-interface/Ollama-Gui?tab=readme-ov-file)
@@ -325,14 +325,14 @@ See the [API documentation](./docs/api.md) for all endpoints.
 - [RWKV-Runner](https://github.com/josStorer/RWKV-Runner) (RWKV offline LLM deployment tool, also usable as a client for ChatGPT and Ollama)
 - [Ollama Grid Search](https://github.com/dezoito/ollama-grid-search) (app to evaluate and compare models)
 - [Olpaka](https://github.com/Otacon/olpaka) (User-friendly Flutter Web App for Ollama)
-- [Casibase](https://casibase.org) (An open source AI knowledge base and dialogue system combining the latest RAG, SSO, ollama support and multiple large language models.)
+- [Casibase](https://casibase.org) (An open source AI knowledge base and dialogue system combining the latest RAG, SSO, ollama support, and multiple large language models.)
 - [OllamaSpring](https://github.com/CrazyNeil/OllamaSpring) (Ollama Client for macOS)
 - [LLocal.in](https://github.com/kartikm7/llocal) (Easy to use Electron Desktop Client for Ollama)
 - [Shinkai Desktop](https://github.com/dcSpark/shinkai-apps) (Two click install Local AI using Ollama + Files + RAG)
-- [AiLama](https://github.com/zeyoyt/ailama) (A Discord User App that allows you to interact with Ollama anywhere in discord )
+- [AiLama](https://github.com/zeyoyt/ailama) (A Discord User App that allows you to interact with Ollama anywhere in Discord)
 - [Ollama with Google Mesop](https://github.com/rapidarchitect/ollama_mesop/) (Mesop Chat Client implementation with Ollama)
 - [R2R](https://github.com/SciPhi-AI/R2R) (Open-source RAG engine)
-- [Ollama-Kis](https://github.com/elearningshow/ollama-kis) (A simple easy to use GUI with sample custom LLM for Drivers Education)
+- [Ollama-Kis](https://github.com/elearningshow/ollama-kis) (A simple easy-to-use GUI with sample custom LLM for Drivers Education)
 - [OpenGPA](https://opengpa.org) (Open-source offline-first Enterprise Agentic Application)
 - [Painting Droid](https://github.com/mateuszmigas/painting-droid) (Painting app with AI integrations)
 - [Kerlig AI](https://www.kerlig.com/) (AI writing assistant for macOS)
@@ -341,16 +341,16 @@ See the [API documentation](./docs/api.md) for all endpoints.
 - [LLMStack](https://github.com/trypromptly/LLMStack) (No-code multi-agent framework to build LLM agents and workflows)
 - [BoltAI for Mac](https://boltai.com) (AI Chat Client for Mac)
 - [Harbor](https://github.com/av/harbor) (Containerized LLM Toolkit with Ollama as default backend)
-- [PyGPT](https://github.com/szczyglis-dev/py-gpt) (AI desktop assistant for Linux, Windows and Mac)
-- [Alpaca](https://github.com/Jeffser/Alpaca) (An Ollama client application for linux and macos made with GTK4 and Adwaita)
+- [PyGPT](https://github.com/szczyglis-dev/py-gpt) (AI desktop assistant for Linux, Windows, and Mac)
+- [Alpaca](https://github.com/Jeffser/Alpaca) (An Ollama client application for Linux and macOS made with GTK4 and Adwaita)
 - [AutoGPT](https://github.com/Significant-Gravitas/AutoGPT/blob/master/docs/content/platform/ollama.md) (AutoGPT Ollama integration)
 - [Go-CREW](https://www.jonathanhecl.com/go-crew/) (Powerful Offline RAG in Golang)
 - [PartCAD](https://github.com/openvmp/partcad/) (CAD model generation with OpenSCAD and CadQuery)
-- [Ollama4j Web UI](https://github.com/ollama4j/ollama4j-web-ui) - Java-based Web UI for Ollama built with Vaadin, Spring Boot and Ollama4j
+- [Ollama4j Web UI](https://github.com/ollama4j/ollama4j-web-ui) - Java-based Web UI for Ollama built with Vaadin, Spring Boot, and Ollama4j
 - [PyOllaMx](https://github.com/kspviswa/pyOllaMx) - macOS application capable of chatting with both Ollama and Apple MLX models.
 - [Cline](https://github.com/cline/cline) - Formerly known as Claude Dev is a VSCode extension for multi-file/whole-repo coding
 - [Cherry Studio](https://github.com/kangfenmao/cherry-studio) (Desktop client with Ollama support)
-- [ConfiChat](https://github.com/1runeberg/confichat) (Lightweight, standalone, multi-platform, and privacy focused LLM chat interface with optional encryption)
+- [ConfiChat](https://github.com/1runeberg/confichat) (Lightweight, standalone, multi-platform, and privacy-focused LLM chat interface with optional encryption)
 - [Archyve](https://github.com/nickthecook/archyve) (RAG-enabling document library)
 - [crewAI with Mesop](https://github.com/rapidarchitect/ollama-crew-mesop) (Mesop Web Interface to run crewAI with Ollama)
 - [Tkinter-based client](https://github.com/chyok/ollama-gui) (Python tkinter-based Client for Ollama)
@@ -368,7 +368,7 @@ See the [API documentation](./docs/api.md) for all endpoints.
 - [DualMind](https://github.com/tcsenpai/dualmind) (Experimental app allowing two models to talk to each other in the terminal or in a web interface)
 - [ollamarama-matrix](https://github.com/h1ddenpr0cess20/ollamarama-matrix) (Ollama chatbot for the Matrix chat protocol)
 - [ollama-chat-app](https://github.com/anan1213095357/ollama-chat-app) (Flutter-based chat app)
-- [Perfect Memory AI](https://www.perfectmemory.ai/) (Productivity AI assists personalized by what you have seen on your screen, heard and said in the meetings)
+- [Perfect Memory AI](https://www.perfectmemory.ai/) (Productivity AI assists personalized by what you have seen on your screen, heard, and said in the meetings)
 - [Hexabot](https://github.com/hexastack/hexabot) (A conversational AI builder)
 - [Reddit Rate](https://github.com/rapidarchitect/reddit_analyzer) (Search and Rate Reddit topics with a weighted summation)
 - [OpenTalkGpt](https://github.com/adarshM84/OpenTalkGpt) (Chrome Extension to manage open-source models supported by Ollama, create custom models, and chat with models from a user-friendly UI)
@@ -386,7 +386,7 @@ See the [API documentation](./docs/api.md) for all endpoints.
 - [ChibiChat](https://github.com/CosmicEventHorizon/ChibiChat) (Kotlin-based Android app to chat with Ollama and Koboldcpp API endpoints)
 - [LocalLLM](https://github.com/qusaismael/localllm) (Minimal Web-App to run ollama models on it with a GUI)
 - [Ollamazing](https://github.com/buiducnhat/ollamazing) (Web extension to run Ollama models)
-- [OpenDeepResearcher-via-searxng](https://github.com/benhaotang/OpenDeepResearcher-via-searxng) (A Deep Research equivent endpoint with Ollama support for running locally)
+- [OpenDeepResearcher-via-searxng](https://github.com/benhaotang/OpenDeepResearcher-via-searxng) (A Deep Research equivalent endpoint with Ollama support for running locally)
 - [AntSK](https://github.com/AIDotNet/AntSK) (Out-of-the-box & Adaptable RAG Chatbot)
 - [MaxKB](https://github.com/1Panel-dev/MaxKB/) (Ready-to-use & flexible RAG Chatbot)
 - [yla](https://github.com/danielekp/yla) (Web interface to freely interact with your customized models)
@@ -399,6 +399,7 @@ See the [API documentation](./docs/api.md) for all endpoints.
 - [Ollamb](https://github.com/hengkysteen/ollamb) (Simple yet rich in features, cross-platform built with Flutter and designed for Ollama. Try the [web demo](https://hengkysteen.github.io/demo/ollamb/).)
 - [Writeopia](https://github.com/Writeopia/Writeopia) (Text editor with integration with Ollama)
 - [AppFlowy](https://github.com/AppFlowy-IO/AppFlowy) (AI collaborative workspace with Ollama, cross-platform and self-hostable)
+- [Lumina](https://github.com/cushydigit/lumina.git) (A lightweight, minimal React.js frontend for interacting with Ollama servers)
 
 ### Cloud
 
@@ -440,7 +441,7 @@ See the [API documentation](./docs/api.md) for all endpoints.
 - [PowershAI](https://github.com/rrg92/powershai) PowerShell module that brings AI to terminal on Windows, including support for Ollama
 - [DeepShell](https://github.com/Abyss-c0re/deepshell) Your self-hosted AI assistant. Interactive Shell, Files and Folders analysis.
 - [orbiton](https://github.com/xyproto/orbiton) Configuration-free text editor and IDE with support for tab completion with Ollama.
-- [orca-cli](https://github.com/molbal/orca-cli) Ollama Registry CLI Application - Browse, pull and download models from Ollama Registry in your terminal.
+- [orca-cli](https://github.com/molbal/orca-cli) Ollama Registry CLI Application - Browse, pull, and download models from Ollama Registry in your terminal.
 - [GGUF-to-Ollama](https://github.com/jonathanhecl/gguf-to-ollama) - Importing GGUF to Ollama made easy (multiplatform)
 
 ### Apple Vision Pro
@@ -515,7 +516,7 @@ See the [API documentation](./docs/api.md) for all endpoints.
 - [Swollama for Swift](https://github.com/marcusziade/Swollama) with [DocC](https://marcusziade.github.io/Swollama/documentation/swollama/)
 - [GoLamify](https://github.com/prasad89/golamify)
 - [Ollama for Haskell](https://github.com/tusharad/ollama-haskell)
-- [multi-llm-ts](https://github.com/nbonamy/multi-llm-ts) (A Typescript/JavaScript library allowing access to different LLM in unified API)
+- [multi-llm-ts](https://github.com/nbonamy/multi-llm-ts) (A Typescript/JavaScript library allowing access to different LLM in a unified API)
 - [LlmTornado](https://github.com/lofcz/llmtornado) (C# library providing a unified interface for major FOSS & Commercial inference APIs)
 - [Ollama for Zig](https://github.com/dravenk/ollama-zig)
 - [Abso](https://github.com/lunary-ai/abso) (OpenAI-compatible TypeScript SDK for any LLM provider)
@@ -524,11 +525,11 @@ See the [API documentation](./docs/api.md) for all endpoints.
 
 ### Mobile
 
-- [SwiftChat](https://github.com/aws-samples/swift-chat) (Lightning-fast Cross-platform AI chat app with native UI for Android, iOS and iPad)
+- [SwiftChat](https://github.com/aws-samples/swift-chat) (Lightning-fast Cross-platform AI chat app with native UI for Android, iOS, and iPad)
 - [Enchanted](https://github.com/AugustDev/enchanted)
 - [Maid](https://github.com/Mobile-Artificial-Intelligence/maid)
 - [Ollama App](https://github.com/JHubi1/ollama-app) (Modern and easy-to-use multi-platform client for Ollama)
-- [ConfiChat](https://github.com/1runeberg/confichat) (Lightweight, standalone, multi-platform, and privacy focused LLM chat interface with optional encryption)
+- [ConfiChat](https://github.com/1runeberg/confichat) (Lightweight, standalone, multi-platform, and privacy-focused LLM chat interface with optional encryption)
 - [Ollama Android Chat](https://github.com/sunshine0523/OllamaServer) (No need for Termux, start the Ollama service with one click on an Android device)
 - [Reins](https://github.com/ibrahimcetin/reins) (Easily tweak parameters, customize system prompts per chat, and enhance your AI experiments with reasoning model support.)
 
@@ -552,7 +553,7 @@ See the [API documentation](./docs/api.md) for all endpoints.
 - [Obsidian Local GPT plugin](https://github.com/pfrankov/obsidian-local-gpt)
 - [Open Interpreter](https://docs.openinterpreter.com/language-model-setup/local-models/ollama)
 - [Llama Coder](https://github.com/ex3ndr/llama-coder) (Copilot alternative using Ollama)
-- [Ollama Copilot](https://github.com/bernardo-bruning/ollama-copilot) (Proxy that allows you to use ollama as a copilot like Github copilot)
+- [Ollama Copilot](https://github.com/bernardo-bruning/ollama-copilot) (Proxy that allows you to use Ollama as a copilot like GitHub Copilot)
 - [twinny](https://github.com/rjmacarthy/twinny) (Copilot and Copilot chat alternative using Ollama)
 - [Wingman-AI](https://github.com/RussellCanfield/wingman-ai) (Copilot code and chat alternative using Ollama and Hugging Face)
 - [Page Assist](https://github.com/n4ze3m/page-assist) (Chrome Extension)
@@ -562,8 +563,8 @@ See the [API documentation](./docs/api.md) for all endpoints.
 - [Discord-Ollama Chat Bot](https://github.com/kevinthedang/discord-ollama) (Generalized TypeScript Discord Bot w/ Tuning Documentation)
 - [ChatGPTBox: All in one browser extension](https://github.com/josStorer/chatGPTBox) with [Integrating Tutorial](https://github.com/josStorer/chatGPTBox/issues/616#issuecomment-1975186467)
 - [Discord AI chat/moderation bot](https://github.com/rapmd73/Companion) Chat/moderation bot written in python. Uses Ollama to create personalities.
-- [Headless Ollama](https://github.com/nischalj10/headless-ollama) (Scripts to automatically install ollama client & models on any OS for apps that depends on ollama server)
-- [Terraform AWS Ollama & Open WebUI](https://github.com/xuyangbocn/terraform-aws-self-host-llm) (A Terraform module to deploy on AWS a ready-to-use Ollama service, together with its front end Open WebUI service.)
+- [Headless Ollama](https://github.com/nischalj10/headless-ollama) (Scripts to automatically install ollama client & models on any OS for apps that depend on ollama server)
+- [Terraform AWS Ollama & Open WebUI](https://github.com/xuyangbocn/terraform-aws-self-host-llm) (A Terraform module to deploy on AWS a ready-to-use Ollama service, together with its front-end Open WebUI service.)
 - [node-red-contrib-ollama](https://github.com/jakubburkiewicz/node-red-contrib-ollama)
 - [Local AI Helper](https://github.com/ivostoykov/localAI) (Chrome and Firefox extensions that enable interactions with the active tab and customisable API endpoints. Includes secure storage for user prompts.)
 - [vnc-lm](https://github.com/jake83741/vnc-lm) (Discord bot for messaging with LLMs through Ollama and LiteLLM. Seamlessly move between local and flagship models.)

cmd/cmd.go

@@ -22,7 +22,6 @@ import (
 	"sort"
 	"strconv"
 	"strings"
-	"sync"
 	"sync/atomic"
 	"syscall"
 	"time"
@@ -32,7 +31,6 @@ import (
 	"github.com/olekukonko/tablewriter"
 	"github.com/spf13/cobra"
 	"golang.org/x/crypto/ssh"
-	"golang.org/x/sync/errgroup"
 	"golang.org/x/term"
 
 	"github.com/ollama/ollama/api"
@@ -108,7 +106,7 @@ func CreateHandler(cmd *cobra.Command, args []string) error {
 	}
 	spinner.Stop()
 
-	req.Model = args[0]
+	req.Name = args[0]
 	quantize, _ := cmd.Flags().GetString("quantize")
 	if quantize != "" {
 		req.Quantize = quantize
@@ -119,43 +117,26 @@ func CreateHandler(cmd *cobra.Command, args []string) error {
 		return err
 	}
 
-	var mu sync.Mutex
-	var g errgroup.Group
-	g.SetLimit(max(runtime.GOMAXPROCS(0)-1, 1))
-	// copy files since we'll be modifying the map
-	temp := req.Files
-	req.Files = make(map[string]string, len(temp))
-	for f, digest := range temp {
-		g.Go(func() error {
+	if len(req.Files) > 0 {
+		fileMap := map[string]string{}
+		for f, digest := range req.Files {
 			if _, err := createBlob(cmd, client, f, digest, p); err != nil {
 				return err
 			}
-
-			mu.Lock()
-			req.Files[filepath.Base(f)] = digest
-			mu.Unlock()
-			return nil
-		})
+			fileMap[filepath.Base(f)] = digest
+		}
+		req.Files = fileMap
 	}
 
-	// copy files since we'll be modifying the map
-	temp = req.Adapters
-	req.Adapters = make(map[string]string, len(temp))
-	for f, digest := range temp {
-		g.Go(func() error {
+	if len(req.Adapters) > 0 {
+		fileMap := map[string]string{}
+		for f, digest := range req.Adapters {
 			if _, err := createBlob(cmd, client, f, digest, p); err != nil {
 				return err
 			}
-
-			mu.Lock()
-			req.Adapters[filepath.Base(f)] = digest
-			mu.Unlock()
-			return nil
-		})
-	}
-
-	if err := g.Wait(); err != nil {
-		return err
+			fileMap[filepath.Base(f)] = digest
+		}
+		req.Adapters = fileMap
 	}
 
 	bars := make(map[string]*progress.Bar)
@@ -232,7 +213,7 @@ func createBlob(cmd *cobra.Command, client *api.Client, path string, digest stri
 		}
 	}()
 
-	if err := client.CreateBlob(cmd.Context(), digest, io.TeeReader(bin, &pw)); err != nil {
+	if err = client.CreateBlob(cmd.Context(), digest, io.TeeReader(bin, &pw)); err != nil {
 		return "", err
 	}
 	return digest, nil
@@ -1426,7 +1407,6 @@ func NewCLI() *cobra.Command {
 				envVars["OLLAMA_LLM_LIBRARY"],
 				envVars["OLLAMA_GPU_OVERHEAD"],
 				envVars["OLLAMA_LOAD_TIMEOUT"],
-				envVars["OLLAMA_CONTEXT_LENGTH"],
 			})
 		default:
 			appendEnvDocs(cmd, envs)

cmd/cmd_test.go

@@ -690,7 +690,7 @@ func TestCreateHandler(t *testing.T) {
 						return
 					}
 
-					if req.Model != "test-model" {
+					if req.Name != "test-model" {
 						t.Errorf("expected model name 'test-model', got %s", req.Name)
 					}
 

convert/convert.go

@@ -4,9 +4,10 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"io"
 	"io/fs"
 	"log/slog"
-	"os"
+	"slices"
 	"strings"
 
 	"github.com/ollama/ollama/fs/ggml"
@@ -84,14 +85,6 @@ func (ModelParameters) specialTokenTypes() []string {
 	}
 }
 
-func (ModelParameters) writeFile(f *os.File, kv ggml.KV, ts []ggml.Tensor) error {
-	return ggml.WriteGGUF(f, kv, ts)
-}
-
-func (AdapterParameters) writeFile(f *os.File, kv ggml.KV, ts []ggml.Tensor) error {
-	return ggml.WriteGGUF(f, kv, ts)
-}
-
 type ModelConverter interface {
 	// KV maps parameters to LLM key-values
 	KV(*Tokenizer) ggml.KV
@@ -103,8 +96,6 @@ type ModelConverter interface {
 
 	// specialTokenTypes returns any special token types the model uses
 	specialTokenTypes() []string
-	// writeFile writes the model to the provided io.WriteSeeker
-	writeFile(*os.File, ggml.KV, []ggml.Tensor) error
 }
 
 type moreParser interface {
@@ -119,11 +110,9 @@ type AdapterConverter interface {
 	// Replacements returns a list of string pairs to replace in tensor names.
 	// See [strings.Replacer](https://pkg.go.dev/strings#Replacer) for details
 	Replacements() []string
-
-	writeFile(*os.File, ggml.KV, []ggml.Tensor) error
 }
 
-func ConvertAdapter(fsys fs.FS, f *os.File, baseKV ggml.KV) error {
+func ConvertAdapter(fsys fs.FS, ws io.WriteSeeker, baseKV ggml.KV) error {
 	bts, err := fs.ReadFile(fsys, "adapter_config.json")
 	if err != nil {
 		return err
@@ -158,14 +147,14 @@ func ConvertAdapter(fsys fs.FS, f *os.File, baseKV ggml.KV) error {
 		return err
 	}
 
-	return conv.writeFile(f, conv.KV(baseKV), conv.Tensors(ts))
+	return writeFile(ws, conv.KV(baseKV), conv.Tensors(ts))
 }
 
 // Convert writes an Ollama compatible model to the provided io.WriteSeeker based on configurations
 // and files it finds in the input path.
 // Supported input model formats include safetensors.
 // Supported input tokenizers files include tokenizer.json (preferred) and tokenizer.model.
-func ConvertModel(fsys fs.FS, f *os.File) error {
+func ConvertModel(fsys fs.FS, ws io.WriteSeeker) error {
 	bts, err := fs.ReadFile(fsys, "config.json")
 	if err != nil {
 		return err
@@ -184,6 +173,8 @@ func ConvertModel(fsys fs.FS, f *os.File) error {
 	switch p.Architectures[0] {
 	case "LlamaForCausalLM":
 		conv = &llamaModel{}
+	case "Llama4ForConditionalGeneration":
+		conv = &llama4Model{}
 	case "Mistral3ForConditionalGeneration":
 		conv = &mistral3Model{}
 	case "MixtralForCausalLM":
@@ -248,5 +239,13 @@ func ConvertModel(fsys fs.FS, f *os.File) error {
 		return err
 	}
 
-	return conv.writeFile(f, conv.KV(t), conv.Tensors(ts))
+	return writeFile(ws, conv.KV(t), conv.Tensors(ts))
+}
+
+func writeFile(ws io.WriteSeeker, kv ggml.KV, ts []ggml.Tensor) error {
+	for i := range ts {
+		ts[i].Shape = slices.Clone(ts[i].Shape)
+		slices.Reverse(ts[i].Shape)
+	}
+	return ggml.WriteGGUF(ws, kv, ts)
 }

convert/convert_llama.go

@@ -42,6 +42,8 @@ type llamaModel struct {
 	LayerNormEpsilon float32 `json:"layer_norm_epsilon"`
 	NormEpsilon      float32 `json:"norm_epsilon"`
 	HeadDim          uint32  `json:"head_dim"`
+
+	skipRepack bool
 }
 
 var _ ModelConverter = (*llamaModel)(nil)
@@ -70,6 +72,10 @@ func (p *llamaModel) KV(t *Tokenizer) ggml.KV {
 		kv["llama.rope.dimension_count"] = p.HiddenSize / headCount
 	}
 
+	if p.HeadDim > 0 {
+		kv["llama.attention.head_dim"] = p.HeadDim
+	}
+
 	if p.RopeTheta > 0 {
 		kv["llama.rope.freq_base"] = p.RopeTheta
 	}
@@ -133,9 +139,10 @@ func (p *llamaModel) Tensors(ts []Tensor) []ggml.Tensor {
 	}
 
 	for _, t := range ts {
-		if strings.HasSuffix(t.Name(), "attn_q.weight") ||
-			strings.HasSuffix(t.Name(), "attn_k.weight") {
-			t.SetRepacker(p.repack)
+		if strings.HasSuffix(t.Name(), "attn_q.weight") || strings.HasSuffix(t.Name(), "attn_k.weight") {
+			if !p.skipRepack {
+				t.SetRepacker(p.repack)
+			}
 		}
 
 		out = append(out, ggml.Tensor{

convert/convert_llama4.go

@@ -0,0 +1,169 @@
+package convert
+
+import (
+	"slices"
+	"strings"
+
+	"github.com/pdevine/tensor"
+	"github.com/pdevine/tensor/native"
+
+	"github.com/ollama/ollama/fs/ggml"
+)
+
+type llama4Model struct {
+	ModelParameters
+	TextModel struct {
+		llamaModel
+		NumExpertsPerToken     uint32 `json:"num_experts_per_tok"`
+		NumLocalExperts        uint32 `json:"num_local_experts"`
+		InterleaveMOELayerStep uint32 `json:"interleave_moe_layer_step"`
+		UseQKNorm              bool   `json:"use_qk_norm"`
+		IntermediateSizeMLP    uint32 `json:"intermediate_size_mlp"`
+		AttentionChunkSize     uint32 `json:"attention_chunk_size"`
+	} `json:"text_config"`
+	VisionModel struct {
+		NumHiddenLayers   uint32  `json:"num_hidden_layers"`
+		HiddenSize        uint32  `json:"hidden_size"`
+		IntermediateSize  uint32  `json:"intermediate_size"`
+		NumAttentionHeads uint32  `json:"num_attention_heads"`
+		ImageSize         uint32  `json:"image_size"`
+		PatchSize         uint32  `json:"patch_size"`
+		RopeTheta         float32 `json:"rope_theta"`
+		NormEpsilon       float32 `json:"norm_eps"`
+		PixelShuffleRatio float32 `json:"pixel_shuffle_ratio"`
+	} `json:"vision_config"`
+}
+
+// KV implements ModelConverter.
+func (p *llama4Model) KV(t *Tokenizer) ggml.KV {
+	kv := p.ModelParameters.KV(t)
+	kv["general.architecture"] = "llama4"
+
+	for k, v := range p.TextModel.KV(t) {
+		if strings.HasPrefix(k, "llama.") {
+			kv[strings.ReplaceAll(k, "llama.", "llama4.")] = v
+		}
+	}
+
+	kv["llama4.feed_forward_length"] = p.TextModel.IntermediateSizeMLP
+	kv["llama4.expert_feed_forward_length"] = p.TextModel.IntermediateSize
+
+	kv["llama4.expert_count"] = p.TextModel.NumLocalExperts
+	kv["llama4.expert_used_count"] = p.TextModel.NumExpertsPerToken
+	kv["llama4.interleave_moe_layer_step"] = p.TextModel.InterleaveMOELayerStep
+	kv["llama4.use_qk_norm"] = p.TextModel.UseQKNorm
+	kv["llama4.attention.chunk_size"] = p.TextModel.AttentionChunkSize
+
+	kv["llama4.vision.block_count"] = p.VisionModel.NumHiddenLayers
+	kv["llama4.vision.embedding_length"] = p.VisionModel.HiddenSize
+	kv["llama4.vision.feed_forward_length"] = p.VisionModel.IntermediateSize
+	kv["llama4.vision.attention.head_count"] = p.VisionModel.NumAttentionHeads
+	kv["llama4.vision.image_size"] = p.VisionModel.ImageSize
+	kv["llama4.vision.patch_size"] = p.VisionModel.PatchSize
+	kv["llama4.vision.rope.freq_base"] = p.VisionModel.RopeTheta
+	kv["llama4.vision.layer_norm_epsilon"] = p.VisionModel.NormEpsilon
+	kv["llama4.vision.pixel_shuffle_ratio"] = p.VisionModel.PixelShuffleRatio
+	return kv
+}
+
+// Replacements implements ModelConverter.
+func (p *llama4Model) Replacements() []string {
+	return append(
+		p.TextModel.Replacements(),
+		"language_model.", "",
+		"vision_model", "v",
+		"multi_modal_projector", "mm",
+		"feed_forward.down_proj", "ffn_down",
+		"feed_forward.up_proj", "ffn_up",
+		"feed_forward.gate_proj", "ffn_gate",
+		"feed_forward.", "ffn_",
+		"shared_expert.down_proj", "down_shexp",
+		"shared_expert.gate_proj", "gate_shexp",
+		"shared_expert.up_proj", "up_shexp",
+		"experts.down_proj", "down_exps.weight",
+		"experts.gate_up_proj", "gate_up_exps.weight",
+		"router", "gate_inp",
+		"patch_embedding.linear", "patch_embedding",
+	)
+}
+
+// Tensors implements ModelConverter.
+func (p *llama4Model) Tensors(ts []Tensor) []ggml.Tensor {
+	var out []ggml.Tensor
+
+	var textTensors []Tensor
+	for _, t := range ts {
+		if strings.HasPrefix(t.Name(), "v.") || strings.HasPrefix(t.Name(), "mm.") {
+			out = append(out, ggml.Tensor{
+				Name:     t.Name(),
+				Kind:     t.Kind(),
+				Shape:    t.Shape(),
+				WriterTo: t,
+			})
+		} else if strings.Contains(t.Name(), "ffn_gate_up_exps") {
+			// gate and up projectors are fused
+			// dims[1], dims[2] must be swapped
+			// [experts, hidden_size, intermediate_size * 2] --> [experts, intermediate_size, hidden_size]
+			halfDim := int(t.Shape()[2]) / 2
+
+			newShape := slices.Clone(t.Shape())
+			newShape[1], newShape[2] = newShape[2]/2, newShape[1]
+			for i, name := range []string{"ffn_gate_exps", "ffn_up_exps"} {
+				// clone tensor since we need separate repackers
+				tt := t.Clone()
+				tt.SetRepacker(p.repack(nil, nil, tensor.S(i*halfDim, (i+1)*halfDim)))
+				out = append(out, ggml.Tensor{
+					Name:     strings.ReplaceAll(tt.Name(), "ffn_gate_up_exps", name),
+					Kind:     tt.Kind(),
+					Shape:    newShape,
+					WriterTo: tt,
+				})
+			}
+		} else if strings.Contains(t.Name(), "ffn_down_exps") {
+			// dims[1], dims[2] must be swapped
+			// [experts, intermediate_size, hidden_size] --> [experts, hidden_size, intermediate_size]
+			t.SetRepacker(p.repack())
+			newShape := slices.Clone(t.Shape())
+			newShape[1], newShape[2] = newShape[2], newShape[1]
+			out = append(out, ggml.Tensor{
+				Name:     t.Name(),
+				Kind:     t.Kind(),
+				Shape:    newShape,
+				WriterTo: t,
+			})
+		} else {
+			textTensors = append(textTensors, t)
+		}
+	}
+
+	p.TextModel.skipRepack = true
+	out = append(out, p.TextModel.Tensors(textTensors)...)
+	return out
+}
+
+func (p *llama4Model) repack(slice ...tensor.Slice) Repacker {
+	return func(name string, data []float32, shape []uint64) ([]float32, error) {
+		dims := make([]int, len(shape))
+		for i, dim := range shape {
+			dims[i] = int(dim)
+		}
+
+		var t tensor.Tensor = tensor.New(tensor.WithShape(dims...), tensor.WithBacking(data))
+		t, err := t.Slice(slice...)
+		if err != nil {
+			return nil, err
+		}
+
+		if err := t.T(0, 2, 1); err != nil {
+			return nil, err
+		}
+
+		t = tensor.Materialize(t)
+		// flatten tensor so it can be return as a vector
+		if err := t.Reshape(t.Shape().TotalSize()); err != nil {
+			return nil, err
+		}
+
+		return native.VectorF32(t.(*tensor.Dense))
+	}
+}

convert/convert_test.go

@@ -11,7 +11,6 @@ import (
 	"io"
 	"io/fs"
 	"log/slog"
-	"math"
 	"os"
 	"path/filepath"
 	"slices"
@@ -48,7 +47,7 @@ func convertFull(t *testing.T, fsys fs.FS) (*os.File, ggml.KV, ggml.Tensors) {
 	}
 	t.Cleanup(func() { r.Close() })
 
-	m, _, err := ggml.Decode(r, math.MaxInt)
+	m, _, err := ggml.Decode(r, -1)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -332,7 +331,7 @@ func TestConvertAdapter(t *testing.T) {
 			}
 			defer r.Close()
 
-			m, _, err := ggml.Decode(r, math.MaxInt)
+			m, _, err := ggml.Decode(r, -1)
 			if err != nil {
 				t.Fatal(err)
 			}

convert/reader.go

@@ -11,14 +11,15 @@ type Tensor interface {
 	Name() string
 	Shape() []uint64
 	Kind() uint32
-	SetRepacker(repacker)
+	SetRepacker(Repacker)
 	WriteTo(io.Writer) (int64, error)
+	Clone() Tensor
 }
 
 type tensorBase struct {
-	name  string
-	shape []uint64
-	repacker
+	name     string
+	shape    []uint64
+	repacker Repacker
 }
 
 func (t tensorBase) Name() string {
@@ -36,7 +37,8 @@ const (
 
 func (t tensorBase) Kind() uint32 {
 	if strings.HasSuffix(t.name, ".ffn_gate_inp.weight") ||
-		t.name == "token_types.weight" {
+		t.name == "token_types.weight" ||
+		t.name == "v.positional_embedding_vlm" {
 		// these tensors are always F32
 		return 0
 	}
@@ -51,11 +53,11 @@ func (t tensorBase) Kind() uint32 {
 	}
 }
 
-func (t *tensorBase) SetRepacker(fn repacker) {
+func (t *tensorBase) SetRepacker(fn Repacker) {
 	t.repacker = fn
 }
 
-type repacker func(string, []float32, []uint64) ([]float32, error)
+type Repacker func(string, []float32, []uint64) ([]float32, error)
 
 func parseTensors(fsys fs.FS, replacer *strings.Replacer) ([]Tensor, error) {
 	patterns := []struct {

convert/reader_safetensors.go

@@ -94,6 +94,21 @@ type safetensor struct {
 	*tensorBase
 }
 
+func (st safetensor) Clone() Tensor {
+	return &safetensor{
+		fs:     st.fs,
+		path:   st.path,
+		dtype:  st.dtype,
+		offset: st.offset,
+		size:   st.size,
+		tensorBase: &tensorBase{
+			name:     st.name,
+			repacker: st.repacker,
+			shape:    slices.Clone(st.shape),
+		},
+	}
+}
+
 func (st safetensor) WriteTo(w io.Writer) (int64, error) {
 	f, err := st.fs.Open(st.path)
 	if err != nil {

convert/reader_torch.go

@@ -43,6 +43,17 @@ type torch struct {
 	*tensorBase
 }
 
+func (t torch) Clone() Tensor {
+	return torch{
+		storage: t.storage,
+		tensorBase: &tensorBase{
+			name:     t.name,
+			shape:    t.shape,
+			repacker: t.repacker,
+		},
+	}
+}
+
 func (pt torch) WriteTo(w io.Writer) (int64, error) {
 	return 0, nil
 }

docs/faq.md

@@ -20,7 +20,7 @@ Please refer to the [GPU docs](./gpu.md).
 
 ## How can I specify the context window size?
 
-By default, Ollama uses a context window size of 4096 tokens, unless you have a single GPU with <= 4 GB of VRAM, in which case it will default to 2048 tokens. 
+By default, Ollama uses a context window size of 4096 tokens. 
 
 This can be overridden with the `OLLAMA_CONTEXT_LENGTH` environment variable. For example, to set the default context window to 8K, use: 
 
@@ -31,7 +31,7 @@ OLLAMA_CONTEXT_LENGTH=8192 ollama serve
 To change this when using `ollama run`, use `/set parameter`:
 
 ```shell
-/set parameter num_ctx 8192
+/set parameter num_ctx 4096
 ```
 
 When using the API, specify the `num_ctx` parameter:
@@ -41,7 +41,7 @@ curl http://localhost:11434/api/generate -d '{
   "model": "llama3.2",
   "prompt": "Why is the sky blue?",
   "options": {
-    "num_ctx": 8192
+    "num_ctx": 4096
   }
 }'
 ```

envconfig/config.go

@@ -169,7 +169,7 @@ var (
 	// Enable the new Ollama engine
 	NewEngine = Bool("OLLAMA_NEW_ENGINE")
 	// ContextLength sets the default context length
-	ContextLength = Int64("OLLAMA_CONTEXT_LENGTH", -1)
+	ContextLength = Uint("OLLAMA_CONTEXT_LENGTH", 4096)
 )
 
 func String(s string) func() string {
@@ -227,20 +227,6 @@ func Uint64(key string, defaultValue uint64) func() uint64 {
 	}
 }
 
-func Int64(key string, defaultValue int64) func() int64 {
-	return func() int64 {
-		if s := Var(key); s != "" {
-			if n, err := strconv.ParseInt(s, 10, 64); err != nil {
-				slog.Warn("invalid environment variable, using default", "key", key, "value", s, "default", defaultValue)
-			} else {
-				return n
-			}
-		}
-
-		return defaultValue
-	}
-}
-
 // Set aside VRAM per GPU
 var GpuOverhead = Uint64("OLLAMA_GPU_OVERHEAD", 0)
 
@@ -269,7 +255,7 @@ func AsMap() map[string]EnvVar {
 		"OLLAMA_ORIGINS":           {"OLLAMA_ORIGINS", AllowedOrigins(), "A comma separated list of allowed origins"},
 		"OLLAMA_SCHED_SPREAD":      {"OLLAMA_SCHED_SPREAD", SchedSpread(), "Always schedule model across all GPUs"},
 		"OLLAMA_MULTIUSER_CACHE":   {"OLLAMA_MULTIUSER_CACHE", MultiUserCache(), "Optimize prompt caching for multi-user scenarios"},
-		"OLLAMA_CONTEXT_LENGTH":    {"OLLAMA_CONTEXT_LENGTH", ContextLength(), "Context length to use unless otherwise specified (default 4096 or 2048 with low VRAM)"},
+		"OLLAMA_CONTEXT_LENGTH":    {"OLLAMA_CONTEXT_LENGTH", ContextLength(), "Context length to use unless otherwise specified (default: 4096)"},
 		"OLLAMA_NEW_ENGINE":        {"OLLAMA_NEW_ENGINE", NewEngine(), "Enable the new Ollama engine"},
 
 		// Informational

envconfig/config_test.go

@@ -278,9 +278,9 @@ func TestVar(t *testing.T) {
 }
 
 func TestContextLength(t *testing.T) {
-	cases := map[string]int64{
-		"":     -1,
-		"4096": 4096,
+	cases := map[string]uint{
+		"":     4096,
+		"2048": 2048,
 	}
 
 	for k, v := range cases {

fs/config.go

@@ -8,6 +8,6 @@ type Config interface {
 	Bool(string, ...bool) bool
 
 	Strings(string, ...[]string) []string
-	Uints(string, ...[]uint32) []uint32
+	Ints(string, ...[]int32) []int32
 	Floats(string, ...[]float32) []float32
 }

fs/ggml/ggml.go

@@ -33,7 +33,7 @@ func (kv KV) Kind() string {
 }
 
 func (kv KV) ParameterCount() uint64 {
-	return keyValue[uint64](kv, "general.parameter_count")
+	return keyValue(kv, "general.parameter_count", uint64(0))
 }
 
 func (kv KV) FileType() fileType {
@@ -105,42 +105,42 @@ func (kv KV) Bool(key string, defaultValue ...bool) bool {
 }
 
 func (kv KV) Strings(key string, defaultValue ...[]string) []string {
-	r := keyValue(kv, key, &array{})
-	s := make([]string, r.size)
-	for i := range r.size {
-		s[i] = r.values[i].(string)
-	}
+	return keyValue(kv, key, &array[string]{values: append(defaultValue, []string(nil))[0]}).values
+}
 
-	return s
+func (kv KV) Ints(key string, defaultValue ...[]int32) []int32 {
+	return keyValue(kv, key, &array[int32]{values: append(defaultValue, []int32(nil))[0]}).values
 }
 
 func (kv KV) Uints(key string, defaultValue ...[]uint32) []uint32 {
-	r := keyValue(kv, key, &array{})
-	s := make([]uint32, r.size)
-	for i := range r.size {
-		s[i] = uint32(r.values[i].(int32))
-	}
-
-	return s
+	return keyValue(kv, key, &array[uint32]{values: append(defaultValue, []uint32(nil))[0]}).values
 }
 
 func (kv KV) Floats(key string, defaultValue ...[]float32) []float32 {
-	r := keyValue(kv, key, &array{})
-	s := make([]float32, r.size)
-	for i := range r.size {
-		s[i] = float32(r.values[i].(float32))
-	}
-	return s
+	return keyValue(kv, key, &array[float32]{values: append(defaultValue, []float32(nil))[0]}).values
 }
 
 func (kv KV) OllamaEngineRequired() bool {
 	return slices.Contains([]string{
 		"gemma3",
 		"mistral3",
+		"llama4",
 	}, kv.Architecture())
 }
 
-func keyValue[T string | uint32 | uint64 | float32 | *array | bool](kv KV, key string, defaultValue ...T) T {
+type valueTypes interface {
+	uint8 | int8 | uint16 | int16 |
+		uint32 | int32 | uint64 | int64 |
+		string | float32 | float64 | bool
+}
+
+type arrayValueTypes interface {
+	*array[uint8] | *array[int8] | *array[uint16] | *array[int16] |
+		*array[uint32] | *array[int32] | *array[uint64] | *array[int64] |
+		*array[string] | *array[float32] | *array[float64] | *array[bool]
+}
+
+func keyValue[T valueTypes | arrayValueTypes](kv KV, key string, defaultValue ...T) T {
 	if !strings.HasPrefix(key, "tokenizer.") && !strings.HasPrefix(key, "general.") {
 		key = kv.Architecture() + "." + key
 	}
@@ -375,13 +375,8 @@ func DetectContentType(b []byte) string {
 // Decode decodes a GGML model from the given reader.
 //
 // It collects array values for arrays with a size less than or equal to
-// maxArraySize. If maxArraySize is 0, the default value of 1024 is used. If
-// the maxArraySize is negative, all arrays are collected.
+// maxArraySize. If the maxArraySize is negative, all arrays are collected.
 func Decode(rs io.ReadSeeker, maxArraySize int) (*GGML, int64, error) {
-	if maxArraySize == 0 {
-		maxArraySize = 1024
-	}
-
 	rs = bufioutil.NewBufferedSeeker(rs, 32<<10)
 
 	var magic uint32
@@ -420,7 +415,7 @@ func (f GGML) GraphSize(context, batch uint64, numParallel int, kvCacheType stri
 	embedding := f.KV().EmbeddingLength()
 	heads := f.KV().HeadCount()
 	headsKV := f.KV().HeadCountKV()
-	vocab := uint64(f.KV()["tokenizer.ggml.tokens"].(*array).size)
+	vocab := uint64(f.KV()["tokenizer.ggml.tokens"].(*array[string]).size)
 
 	embeddingHeads := f.KV().EmbeddingHeadCount()
 	embeddingHeadsK := f.KV().EmbeddingHeadCountK()
@@ -435,7 +430,7 @@ func (f GGML) GraphSize(context, batch uint64, numParallel int, kvCacheType stri
 	}
 
 	switch f.KV().Architecture() {
-	case "llama":
+	case "llama", "llama4":
 		fullOffload = max(
 			4*batch*(1+4*embedding+context*(1+heads)),
 			4*batch*(embedding+vocab),
@@ -449,7 +444,7 @@ func (f GGML) GraphSize(context, batch uint64, numParallel int, kvCacheType stri
 
 		if ffnGateExpsWeight, ok := layers["blk.0"]["ffn_gate_exps.weight"]; ok {
 			// mixtral 8x22b
-			ff := uint64(f.KV()["llama.feed_forward_length"].(uint32))
+			ff := uint64(f.KV().Uint("feed_forward_length"))
 			partialOffload = max(
 				3*ffnGateExpsWeight.Size()+4*batch*(2*ff+headsKV+embedding+context+embeddingHeads*headsKV),
 				4*(context*batch*heads+context*embeddingHeads*headsKV+batch*1024+embeddingHeads*headsKV*batch),
@@ -466,9 +461,9 @@ func (f GGML) GraphSize(context, batch uint64, numParallel int, kvCacheType stri
 	case "mllama":
 		var visionTokens, tiles uint64 = 1601, 4
 
-		crossAttentionLayers := f.KV().Uints("attention.cross_attention_layers")
+		crossAttentionLayers := f.KV().Ints("attention.cross_attention_layers")
 		for i := range kv {
-			if slices.Contains(crossAttentionLayers, uint32(i)) {
+			if slices.Contains(crossAttentionLayers, int32(i)) {
 				kv[i] = headsKV * (embeddingHeadsK + embeddingHeadsV) *
 					4 * // sizeof(float32)
 					visionTokens *
@@ -645,6 +640,9 @@ func (llm GGML) VisionGraphSize() (weights, graphSize uint64) {
 		graphSize = 4 * (imageSize*imageSize*numChannels +
 			embeddingLength*patchSize +
 			numPatches*numPatches*headCount)
+	case "llama4":
+		// vision graph is computed independently in the same schedule
+		// and is negligible compared to the worst case text graph
 	}
 
 	return weights, graphSize

fs/ggml/ggml_test.go

@@ -2,6 +2,7 @@ package ggml
 
 import (
 	"maps"
+	"math"
 	"slices"
 	"strconv"
 	"strings"
@@ -210,3 +211,61 @@ func TestTensorTypes(t *testing.T) {
 		})
 	}
 }
+
+func TestKeyValue(t *testing.T) {
+	kv := KV{
+		"general.architecture": "test",
+		"test.strings":         &array[string]{size: 3, values: []string{"a", "b", "c"}},
+		"test.float32s":        &array[float32]{size: 3, values: []float32{1.0, 2.0, 3.0}},
+		"test.int32s":          &array[int32]{size: 3, values: []int32{1, 2, 3}},
+		"test.uint32s":         &array[uint32]{size: 3, values: []uint32{1, 2, 3}},
+	}
+
+	if diff := cmp.Diff(kv.Strings("strings"), []string{"a", "b", "c"}); diff != "" {
+		t.Errorf("unexpected strings (-got +want):\n%s", diff)
+	}
+
+	if diff := cmp.Diff(kv.Strings("nonexistent.strings"), []string(nil)); diff != "" {
+		t.Errorf("unexpected strings (-got +want):\n%s", diff)
+	}
+
+	if diff := cmp.Diff(kv.Strings("default.strings", []string{"ollama"}), []string{"ollama"}); diff != "" {
+		t.Errorf("unexpected strings (-got +want):\n%s", diff)
+	}
+
+	if diff := cmp.Diff(kv.Floats("float32s"), []float32{1.0, 2.0, 3.0}); diff != "" {
+		t.Errorf("unexpected float32s (-got +want):\n%s", diff)
+	}
+
+	if diff := cmp.Diff(kv.Floats("nonexistent.float32s"), []float32(nil)); diff != "" {
+		t.Errorf("unexpected float32s (-got +want):\n%s", diff)
+	}
+
+	if diff := cmp.Diff(kv.Floats("default.float32s", []float32{math.MaxFloat32}), []float32{math.MaxFloat32}); diff != "" {
+		t.Errorf("unexpected float32s (-got +want):\n%s", diff)
+	}
+
+	if diff := cmp.Diff(kv.Ints("int32s"), []int32{1, 2, 3}); diff != "" {
+		t.Errorf("unexpected int8s (-got +want):\n%s", diff)
+	}
+
+	if diff := cmp.Diff(kv.Ints("nonexistent.int32s"), []int32(nil)); diff != "" {
+		t.Errorf("unexpected int8s (-got +want):\n%s", diff)
+	}
+
+	if diff := cmp.Diff(kv.Ints("default.int32s", []int32{math.MaxInt32}), []int32{math.MaxInt32}); diff != "" {
+		t.Errorf("unexpected int8s (-got +want):\n%s", diff)
+	}
+
+	if diff := cmp.Diff(kv.Uints("uint32s"), []uint32{1, 2, 3}); diff != "" {
+		t.Errorf("unexpected uint8s (-got +want):\n%s", diff)
+	}
+
+	if diff := cmp.Diff(kv.Uints("nonexistent.uint32s"), []uint32(nil)); diff != "" {
+		t.Errorf("unexpected uint8s (-got +want):\n%s", diff)
+	}
+
+	if diff := cmp.Diff(kv.Uints("default.uint32s", []uint32{math.MaxUint32}), []uint32{math.MaxUint32}); diff != "" {
+		t.Errorf("unexpected uint8s (-got +want):\n%s", diff)
+	}
+}

fs/ggml/gguf.go

@@ -9,12 +9,8 @@ import (
 	"io"
 	"log/slog"
 	"maps"
-	"os"
-	"runtime"
 	"slices"
 	"strings"
-
-	"golang.org/x/sync/errgroup"
 )
 
 type containerGGUF struct {
@@ -40,10 +36,6 @@ type containerGGUF struct {
 	maxArraySize int
 }
 
-func (c *containerGGUF) canCollectArray(size int) bool {
-	return c.maxArraySize < 0 || size <= c.maxArraySize
-}
-
 func (c *containerGGUF) Name() string {
 	return "gguf"
 }
@@ -299,6 +291,23 @@ func readGGUFV1String(llm *gguf, r io.Reader) (string, error) {
 	return b.String(), nil
 }
 
+func readGGUFV1StringsData(llm *gguf, r io.Reader, a *array[string]) (any, error) {
+	for i := range a.size {
+		if a.values != nil {
+			e, err := readGGUFV1String(llm, r)
+			if err != nil {
+				return nil, err
+			}
+
+			a.values[i] = e
+		} else {
+			discardGGUFString(llm, r)
+		}
+	}
+
+	return a, nil
+}
+
 func discardGGUFString(llm *gguf, r io.Reader) error {
 	buf := llm.scratch[:8]
 	_, err := io.ReadFull(r, buf)
@@ -356,78 +365,44 @@ func writeGGUFString(w io.Writer, s string) error {
 	return err
 }
 
-type array struct {
-	size   int
-	values []any
-}
-
-func (a *array) MarshalJSON() ([]byte, error) {
-	return json.Marshal(a.values)
-}
-
-func readGGUFV1Array(llm *gguf, r io.Reader) (*array, error) {
-	t, err := readGGUF[uint32](llm, r)
-	if err != nil {
-		return nil, err
-	}
-
-	n, err := readGGUF[uint32](llm, r)
-	if err != nil {
-		return nil, err
-	}
-
-	a := &array{size: int(n)}
-	if llm.canCollectArray(int(n)) {
-		a.values = make([]any, 0, int(n))
-	}
-
-	for i := range n {
-		var e any
-		switch t {
-		case ggufTypeUint8:
-			e, err = readGGUF[uint8](llm, r)
-		case ggufTypeInt8:
-			e, err = readGGUF[int8](llm, r)
-		case ggufTypeUint16:
-			e, err = readGGUF[uint16](llm, r)
-		case ggufTypeInt16:
-			e, err = readGGUF[int16](llm, r)
-		case ggufTypeUint32:
-			e, err = readGGUF[uint32](llm, r)
-		case ggufTypeInt32:
-			e, err = readGGUF[int32](llm, r)
-		case ggufTypeUint64:
-			e, err = readGGUF[uint64](llm, r)
-		case ggufTypeInt64:
-			e, err = readGGUF[int64](llm, r)
-		case ggufTypeFloat32:
-			e, err = readGGUF[float32](llm, r)
-		case ggufTypeFloat64:
-			e, err = readGGUF[float64](llm, r)
-		case ggufTypeBool:
-			e, err = readGGUF[bool](llm, r)
-		case ggufTypeString:
-			e, err = readGGUFV1String(llm, r)
-		default:
-			return nil, fmt.Errorf("invalid array type: %d", t)
-		}
-		if err != nil {
-			return nil, err
-		}
-
+func readGGUFStringsData(llm *gguf, r io.Reader, a *array[string]) (any, error) {
+	for i := range a.size {
 		if a.values != nil {
+			e, err := readGGUFString(llm, r)
+			if err != nil {
+				return nil, err
+			}
+
 			a.values[i] = e
+		} else {
+			discardGGUFString(llm, r)
 		}
 	}
 
 	return a, nil
 }
 
-func readGGUFArray(llm *gguf, r io.Reader) (*array, error) {
-	if llm.Version == 1 {
-		return readGGUFV1Array(llm, r)
-	}
+type array[T any] struct {
+	// size is the actual size of the array
+	size int
 
+	// values is the array of values. this is nil if the array is larger than configured maxSize
+	values []T
+}
+
+func (a *array[T]) MarshalJSON() ([]byte, error) {
+	return json.Marshal(a.values)
+}
+
+func newArray[T any](size, maxSize int) *array[T] {
+	a := array[T]{size: size}
+	if maxSize < 0 || size <= maxSize {
+		a.values = make([]T, size)
+	}
+	return &a
+}
+
+func readGGUFArray(llm *gguf, r io.Reader) (any, error) {
 	t, err := readGGUF[uint32](llm, r)
 	if err != nil {
 		return nil, err
@@ -438,45 +413,55 @@ func readGGUFArray(llm *gguf, r io.Reader) (*array, error) {
 		return nil, err
 	}
 
-	a := &array{size: int(n)}
-	if llm.canCollectArray(int(n)) {
-		a.values = make([]any, int(n))
-	}
-
-	for i := range n {
-		var e any
-		switch t {
-		case ggufTypeUint8:
-			e, err = readGGUF[uint8](llm, r)
-		case ggufTypeInt8:
-			e, err = readGGUF[int8](llm, r)
-		case ggufTypeUint16:
-			e, err = readGGUF[uint16](llm, r)
-		case ggufTypeInt16:
-			e, err = readGGUF[int16](llm, r)
-		case ggufTypeUint32:
-			e, err = readGGUF[uint32](llm, r)
-		case ggufTypeInt32:
-			e, err = readGGUF[int32](llm, r)
-		case ggufTypeUint64:
-			e, err = readGGUF[uint64](llm, r)
-		case ggufTypeInt64:
-			e, err = readGGUF[int64](llm, r)
-		case ggufTypeFloat32:
-			e, err = readGGUF[float32](llm, r)
-		case ggufTypeFloat64:
-			e, err = readGGUF[float64](llm, r)
-		case ggufTypeBool:
-			e, err = readGGUF[bool](llm, r)
-		case ggufTypeString:
-			if a.values != nil {
-				e, err = readGGUFString(llm, r)
-			} else {
-				err = discardGGUFString(llm, r)
-			}
-		default:
-			return nil, fmt.Errorf("invalid array type: %d", t)
+	switch t {
+	case ggufTypeUint8:
+		a := newArray[uint8](int(n), llm.maxArraySize)
+		return readGGUFArrayData(llm, r, a)
+	case ggufTypeInt8:
+		a := newArray[int8](int(n), llm.maxArraySize)
+		return readGGUFArrayData(llm, r, a)
+	case ggufTypeUint16:
+		a := newArray[uint16](int(n), llm.maxArraySize)
+		return readGGUFArrayData(llm, r, a)
+	case ggufTypeInt16:
+		a := newArray[int16](int(n), llm.maxArraySize)
+		return readGGUFArrayData(llm, r, a)
+	case ggufTypeUint32:
+		a := newArray[uint32](int(n), llm.maxArraySize)
+		return readGGUFArrayData(llm, r, a)
+	case ggufTypeInt32:
+		a := newArray[int32](int(n), llm.maxArraySize)
+		return readGGUFArrayData(llm, r, a)
+	case ggufTypeUint64:
+		a := newArray[uint64](int(n), llm.maxArraySize)
+		return readGGUFArrayData(llm, r, a)
+	case ggufTypeInt64:
+		a := newArray[int64](int(n), llm.maxArraySize)
+		return readGGUFArrayData(llm, r, a)
+	case ggufTypeFloat32:
+		a := newArray[float32](int(n), llm.maxArraySize)
+		return readGGUFArrayData(llm, r, a)
+	case ggufTypeFloat64:
+		a := newArray[float64](int(n), llm.maxArraySize)
+		return readGGUFArrayData(llm, r, a)
+	case ggufTypeBool:
+		a := newArray[bool](int(n), llm.maxArraySize)
+		return readGGUFArrayData(llm, r, a)
+	case ggufTypeString:
+		a := newArray[string](int(n), llm.maxArraySize)
+		if llm.Version == 1 {
+			return readGGUFV1StringsData(llm, r, a)
 		}
+
+		return readGGUFStringsData(llm, r, a)
+	default:
+		return nil, fmt.Errorf("invalid array type: %d", t)
+	}
+}
+
+func readGGUFArrayData[T any](llm *gguf, r io.Reader, a *array[T]) (any, error) {
+	for i := range a.size {
+		e, err := readGGUF[T](llm, r)
 		if err != nil {
 			return nil, err
 		}
@@ -506,22 +491,22 @@ func writeGGUFArray[S ~[]E, E any](w io.Writer, t uint32, s S) error {
 	return binary.Write(w, binary.LittleEndian, s)
 }
 
-func WriteGGUF(f *os.File, kv KV, ts []Tensor) error {
+func WriteGGUF(ws io.WriteSeeker, kv KV, ts []Tensor) error {
 	alignment := kv.Uint("general.alignment", 32)
 
-	if err := binary.Write(f, binary.LittleEndian, []byte("GGUF")); err != nil {
+	if err := binary.Write(ws, binary.LittleEndian, []byte("GGUF")); err != nil {
 		return err
 	}
 
-	if err := binary.Write(f, binary.LittleEndian, uint32(3)); err != nil {
+	if err := binary.Write(ws, binary.LittleEndian, uint32(3)); err != nil {
 		return err
 	}
 
-	if err := binary.Write(f, binary.LittleEndian, uint64(len(ts))); err != nil {
+	if err := binary.Write(ws, binary.LittleEndian, uint64(len(ts))); err != nil {
 		return err
 	}
 
-	if err := binary.Write(f, binary.LittleEndian, uint64(len(kv))); err != nil {
+	if err := binary.Write(ws, binary.LittleEndian, uint64(len(kv))); err != nil {
 		return err
 	}
 
@@ -529,7 +514,7 @@ func WriteGGUF(f *os.File, kv KV, ts []Tensor) error {
 	slices.Sort(keys)
 
 	for _, key := range keys {
-		if err := ggufWriteKV(f, key, kv[key]); err != nil {
+		if err := ggufWriteKV(ws, key, kv[key]); err != nil {
 			return err
 		}
 	}
@@ -545,34 +530,21 @@ func WriteGGUF(f *os.File, kv KV, ts []Tensor) error {
 	})
 
 	var s uint64
-	for i := range ts {
-		ts[i].Offset = s + uint64(ggufPadding(int64(s), int64(alignment)))
-		if err := ggufWriteTensorInfo(f, ts[i]); err != nil {
+	for _, t := range ts {
+		t.Offset = s + uint64(ggufPadding(int64(s), int64(alignment)))
+		if err := ggufWriteTensorInfo(ws, t); err != nil {
 			return err
 		}
-		s += ts[i].Size()
+		s += t.Size()
 	}
 
-	offset, err := f.Seek(0, io.SeekCurrent)
-	if err != nil {
-		return err
-	}
-
-	offset += ggufPadding(offset, int64(alignment))
-	slog.Debug("gguf", "offset", offset, "size", s, "alignment", alignment)
-
-	var g errgroup.Group
-	g.SetLimit(runtime.GOMAXPROCS(0))
 	for _, t := range ts {
-		t := t
-		w := io.NewOffsetWriter(f, offset+int64(t.Offset))
-		g.Go(func() error {
-			_, err := t.WriteTo(w)
+		if err := ggufWriteTensor(ws, t, int64(alignment)); err != nil {
 			return err
-		})
+		}
 	}
 
-	return g.Wait()
+	return nil
 }
 
 func ggufWriteKV(ws io.WriteSeeker, k string, v any) error {
@@ -644,8 +616,8 @@ func ggufWriteTensorInfo(ws io.WriteSeeker, t Tensor) error {
 		return err
 	}
 
-	for i := range len(t.Shape) {
-		if err := binary.Write(ws, binary.LittleEndian, t.Shape[len(t.Shape)-i-1]); err != nil {
+	for _, n := range t.Shape {
+		if err := binary.Write(ws, binary.LittleEndian, n); err != nil {
 			return err
 		}
 	}
@@ -657,6 +629,20 @@ func ggufWriteTensorInfo(ws io.WriteSeeker, t Tensor) error {
 	return binary.Write(ws, binary.LittleEndian, t.Offset)
 }
 
+func ggufWriteTensor(ws io.WriteSeeker, t Tensor, alignment int64) error {
+	offset, err := ws.Seek(0, io.SeekCurrent)
+	if err != nil {
+		return err
+	}
+
+	if err := binary.Write(ws, binary.LittleEndian, bytes.Repeat([]byte{0}, int(ggufPadding(offset, alignment)))); err != nil {
+		return err
+	}
+
+	_, err = t.WriteTo(ws)
+	return err
+}
+
 func ggufPadding(offset, align int64) int64 {
 	return (align - offset%align) % align
 }

go.mod

@@ -11,7 +11,7 @@ require (
 	github.com/spf13/cobra v1.7.0
 	github.com/stretchr/testify v1.9.0
 	github.com/x448/float16 v0.8.4
-	golang.org/x/sync v0.11.0
+	golang.org/x/sync v0.12.0
 )
 
 require (
@@ -70,12 +70,12 @@ require (
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.12 // indirect
 	golang.org/x/arch v0.8.0 // indirect
-	golang.org/x/crypto v0.33.0
+	golang.org/x/crypto v0.36.0
 	golang.org/x/exp v0.0.0-20250218142911-aa4b98e5adaa
-	golang.org/x/net v0.35.0 // indirect
-	golang.org/x/sys v0.30.0
-	golang.org/x/term v0.29.0
-	golang.org/x/text v0.22.0
+	golang.org/x/net v0.38.0 // indirect
+	golang.org/x/sys v0.31.0
+	golang.org/x/term v0.30.0
+	golang.org/x/text v0.23.0
 	google.golang.org/protobuf v1.34.1
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -214,8 +214,8 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.33.0 h1:IOBPskki6Lysi0lo9qQvbxiQ+FvsCC/YWOecCHAixus=
-golang.org/x/crypto v0.33.0/go.mod h1:bVdXmD7IV/4GdElGPozy6U7lWdRXA4qyRVGJV57uQ5M=
+golang.org/x/crypto v0.36.0 h1:AnAEvhDddvBdpY+uR+MyHmuZzzNqXSe/GvuDeob5L34=
+golang.org/x/crypto v0.36.0/go.mod h1:Y4J0ReaxCR1IMaabaSMugxJES1EpwhBHhv2bDHklZvc=
 golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20180807140117-3d87b88a115f/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -257,8 +257,8 @@ golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81R
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/net v0.0.0-20210614182718-04defd469f4e/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.35.0 h1:T5GQRQb2y08kTAByq9L4/bz8cipCdA8FbRTXewonqY8=
-golang.org/x/net v0.35.0/go.mod h1:EglIi67kWsHKlRzzVMUD93VMSWGFOMSZgxFjparz1Qk=
+golang.org/x/net v0.38.0 h1:vRMAPTMaeGqVhG5QyLJHqNDwecKTomGeqbnfZyKlBI8=
+golang.org/x/net v0.38.0/go.mod h1:ivrbrMbzFq5J41QOQh0siUuly180yBYtLp+CKbEaFx8=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -268,8 +268,8 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.11.0 h1:GGz8+XQP4FvTTrjZPzNKTMFtSXH80RAzG+5ghFPgK9w=
-golang.org/x/sync v0.11.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/sync v0.12.0 h1:MHc5BpPuC30uJk597Ri8TV3CNZcTLu6B6z4lJy+g6Jw=
+golang.org/x/sync v0.12.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -285,17 +285,17 @@ golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
-golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
+golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/term v0.29.0 h1:L6pJp37ocefwRRtYPKSWOWzOtWSxVajvz2ldH/xi3iU=
-golang.org/x/term v0.29.0/go.mod h1:6bl4lRlvVuDgSf3179VpIxBF0o10JUpXWOnI7nErv7s=
+golang.org/x/term v0.30.0 h1:PQ39fJZ+mfadBm0y5WlL4vlM7Sx1Hgf13sMIY2+QS9Y=
+golang.org/x/term v0.30.0/go.mod h1:NYYFdzHoI5wRh/h5tDMdMqCqPJZEuNqVR5xJLd/n67g=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
-golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
+golang.org/x/text v0.23.0 h1:D71I7dUrlY+VX0gQShAThNGHFxZ13dGLBHQLVl1mJlY=
+golang.org/x/text v0.23.0/go.mod h1:/BLNzu4aZCJ1+kcD0DNRotWKage4q2rGVAg4o22unh4=
 golang.org/x/tools v0.0.0-20180525024113-a5b4c53f6e8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

integration/embed_test.go

@@ -34,13 +34,15 @@ func cosineSimilarity[V float32 | float64](v1, v2 []V) V {
 func TestAllMiniLMEmbeddings(t *testing.T) {
 	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
 	defer cancel()
+	client, _, cleanup := InitServerConnection(ctx, t)
+	defer cleanup()
 
 	req := api.EmbeddingRequest{
 		Model:  "all-minilm",
 		Prompt: "why is the sky blue?",
 	}
 
-	res, err := embeddingTestHelper(ctx, t, req)
+	res, err := embeddingTestHelper(ctx, client, t, req)
 
 	if err != nil {
 		t.Fatalf("error: %v", err)
@@ -62,13 +64,15 @@ func TestAllMiniLMEmbeddings(t *testing.T) {
 func TestAllMiniLMEmbed(t *testing.T) {
 	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
 	defer cancel()
+	client, _, cleanup := InitServerConnection(ctx, t)
+	defer cleanup()
 
 	req := api.EmbedRequest{
 		Model: "all-minilm",
 		Input: "why is the sky blue?",
 	}
 
-	res, err := embedTestHelper(ctx, t, req)
+	res, err := embedTestHelper(ctx, client, t, req)
 
 	if err != nil {
 		t.Fatalf("error: %v", err)
@@ -98,13 +102,15 @@ func TestAllMiniLMEmbed(t *testing.T) {
 func TestAllMiniLMBatchEmbed(t *testing.T) {
 	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
 	defer cancel()
+	client, _, cleanup := InitServerConnection(ctx, t)
+	defer cleanup()
 
 	req := api.EmbedRequest{
 		Model: "all-minilm",
 		Input: []string{"why is the sky blue?", "why is the grass green?"},
 	}
 
-	res, err := embedTestHelper(ctx, t, req)
+	res, err := embedTestHelper(ctx, client, t, req)
 
 	if err != nil {
 		t.Fatalf("error: %v", err)
@@ -144,6 +150,8 @@ func TestAllMiniLMBatchEmbed(t *testing.T) {
 func TestAllMiniLMEmbedTruncate(t *testing.T) {
 	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
 	defer cancel()
+	client, _, cleanup := InitServerConnection(ctx, t)
+	defer cleanup()
 
 	truncTrue, truncFalse := true, false
 
@@ -182,7 +190,7 @@ func TestAllMiniLMEmbedTruncate(t *testing.T) {
 	res := make(map[string]*api.EmbedResponse)
 
 	for _, req := range reqs {
-		response, err := embedTestHelper(ctx, t, req.Request)
+		response, err := embedTestHelper(ctx, client, t, req.Request)
 		if err != nil {
 			t.Fatalf("error: %v", err)
 		}
@@ -198,7 +206,7 @@ func TestAllMiniLMEmbedTruncate(t *testing.T) {
 	}
 
 	// check that truncate set to false returns an error if context length is exceeded
-	_, err := embedTestHelper(ctx, t, api.EmbedRequest{
+	_, err := embedTestHelper(ctx, client, t, api.EmbedRequest{
 		Model:    "all-minilm",
 		Input:    "why is the sky blue?",
 		Truncate: &truncFalse,
@@ -210,9 +218,7 @@ func TestAllMiniLMEmbedTruncate(t *testing.T) {
 	}
 }
 
-func embeddingTestHelper(ctx context.Context, t *testing.T, req api.EmbeddingRequest) (*api.EmbeddingResponse, error) {
-	client, _, cleanup := InitServerConnection(ctx, t)
-	defer cleanup()
+func embeddingTestHelper(ctx context.Context, client *api.Client, t *testing.T, req api.EmbeddingRequest) (*api.EmbeddingResponse, error) {
 	if err := PullIfMissing(ctx, client, req.Model); err != nil {
 		t.Fatalf("failed to pull model %s: %v", req.Model, err)
 	}
@@ -226,9 +232,7 @@ func embeddingTestHelper(ctx context.Context, t *testing.T, req api.EmbeddingReq
 	return response, nil
 }
 
-func embedTestHelper(ctx context.Context, t *testing.T, req api.EmbedRequest) (*api.EmbedResponse, error) {
-	client, _, cleanup := InitServerConnection(ctx, t)
-	defer cleanup()
+func embedTestHelper(ctx context.Context, client *api.Client, t *testing.T, req api.EmbedRequest) (*api.EmbedResponse, error) {
 	if err := PullIfMissing(ctx, client, req.Model); err != nil {
 		t.Fatalf("failed to pull model %s: %v", req.Model, err)
 	}

kvcache/causal.go

@@ -21,6 +21,7 @@ type shiftFn func(ctx ml.Context, layer int, key, shift ml.Tensor) (ml.Tensor, e
 type Causal struct {
 	DType      ml.DType
 	windowSize int32
+	chunkSize  int32
 
 	opts CausalOptions
 
@@ -97,6 +98,17 @@ func NewSWACache(windowSize int32, shift shiftFn) *Causal {
 	}
 }
 
+func NewChunkedAttentionCache(chunkSize int32, shift shiftFn) *Causal {
+	return &Causal{
+		windowSize: math.MaxInt32,
+		chunkSize:  chunkSize,
+		shiftFn:    shift,
+		ctxs:       make(map[int]ml.Context),
+		keys:       make(map[int]ml.Tensor),
+		values:     make(map[int]ml.Tensor),
+	}
+}
+
 func (c *Causal) Init(backend ml.Backend, dtype ml.DType, maxSequences, capacity, maxBatch int) {
 	if c.config == nil {
 		var config ml.CacheConfig
@@ -300,6 +312,7 @@ func (c *Causal) buildMask(ctx ml.Context) (ml.Tensor, error) {
 		for j := c.curCellRange.min; j <= c.curCellRange.max; j++ {
 			if !slices.Contains(c.cells[j].sequences, c.curSequences[i]) ||
 				(enabled && c.cells[j].pos > c.curPositions[i]) ||
+				c.chunkSize > 0 && c.cells[j].pos < c.curPositions[i]-c.curPositions[i]%c.chunkSize ||
 				c.cells[j].pos < c.curPositions[i]-c.windowSize {
 				mask[i*length+(j-c.curCellRange.min)] = float32(math.Inf(-1))
 			}

kvcache/causal_test.go

@@ -86,6 +86,64 @@ func TestSWA(t *testing.T) {
 	testCache(t, backend, cache, tests)
 }
 
+func TestChunkedAttention(t *testing.T) {
+	cache := NewChunkedAttentionCache(2, nil)
+	defer cache.Close()
+
+	var b testBackend
+	cache.Init(&b, ml.DTypeF16, 1, 16, 16)
+
+	x := float32(math.Inf(-1))
+
+	testCache(
+		t, &b, cache,
+		[]testCase{
+			{
+				name:          "FirstBatch",
+				in:            []float32{1, 2, 3, 4},
+				inShape:       []int{1, 1, 4},
+				seqs:          []int{0, 0, 0, 0},
+				pos:           []int32{0, 1, 2, 3},
+				expected:      []float32{1, 2, 3, 4},
+				expectedShape: []int{1, 1, 4},
+				expectedMask: []float32{
+					0, x, x, x,
+					0, 0, x, x,
+					x, x, 0, x,
+					x, x, 0, 0,
+				},
+			},
+			{
+				name:          "SecondBatch",
+				in:            []float32{5, 6, 7},
+				inShape:       []int{1, 1, 3},
+				seqs:          []int{0, 0, 0},
+				pos:           []int32{4, 5, 6},
+				expected:      []float32{1, 2, 3, 4, 5, 6, 7},
+				expectedShape: []int{1, 1, 7},
+				expectedMask: []float32{
+					x, x, x, x, 0, x, x,
+					x, x, x, x, 0, 0, x,
+					x, x, x, x, x, x, 0,
+				},
+			},
+			{
+				name:          "ThirdBatch",
+				in:            []float32{8, 9},
+				inShape:       []int{1, 1, 2},
+				seqs:          []int{0, 0},
+				pos:           []int32{7, 8},
+				expected:      []float32{1, 2, 3, 4, 5, 6, 7, 8, 9},
+				expectedShape: []int{1, 1, 9},
+				expectedMask: []float32{
+					x, x, x, x, x, x, 0, 0, x,
+					x, x, x, x, x, x, x, x, 0,
+				},
+			},
+		},
+	)
+}
+
 func TestSequences(t *testing.T) {
 	backend := &testBackend{}
 	cache := NewCausalCache(nil)
@@ -293,8 +351,16 @@ func testCache(t *testing.T, backend ml.Backend, cache Cache, tests []testCase)
 
 			context.Forward(out, mask).Compute(out, mask)
 
-			if !slices.Equal(out.Floats(), test.expected) || !slices.Equal(out.Shape(), test.expectedShape) || !slices.Equal(mask.Floats(), test.expectedMask) {
-				t.Errorf("TestCache: have %v (shape %v); want %v (shape %v); mask: have %v (shape %v) want %v", out.Floats(), out.Shape(), test.expected, test.expectedShape, mask.Floats(), mask.Shape(), test.expectedMask)
+			if !slices.Equal(out.Floats(), test.expected) {
+				t.Errorf("TestCache: have %v; want %v", out.Floats(), test.expected)
+			}
+
+			if !slices.Equal(out.Shape(), test.expectedShape) {
+				t.Errorf("TestCache: has shape %v; want %v", out.Shape(), test.expectedShape)
+			}
+
+			if !slices.Equal(mask.Floats(), test.expectedMask) {
+				t.Errorf("TestCache: have mask: have %v want %v", mask.Floats(), test.expectedMask)
 			}
 		})
 	}

llm/memory.go

@@ -414,7 +414,7 @@ func projectorMemoryRequirements(filename string) (weights, graphSize uint64) {
 	}
 	defer file.Close()
 
-	ggml, _, err := ggml.Decode(file, 0)
+	ggml, _, err := ggml.Decode(file, 1024)
 	if err != nil {
 		return 0, 0
 	}

llm/server.go

@@ -329,11 +329,13 @@ func NewLlamaServer(gpus discover.GpuInfoList, modelPath string, f *ggml.GGML, a
 			libraryPaths = append(libraryPaths, filepath.SplitList(libraryPath)...)
 		}
 
+		ggmlPaths := []string{discover.LibOllamaPath}
 		if len(compatible) > 0 {
 			c := compatible[0]
 			if libpath, ok := libs[c]; ok {
 				slog.Debug("adding gpu library", "path", libpath)
 				libraryPaths = append(libraryPaths, libpath)
+				ggmlPaths = append(ggmlPaths, libpath)
 			}
 		}
 
@@ -369,6 +371,8 @@ func NewLlamaServer(gpus discover.GpuInfoList, modelPath string, f *ggml.GGML, a
 		s.cmd.Stderr = s.status
 		s.cmd.SysProcAttr = LlamaServerSysProcAttr
 
+		s.cmd.Env = append(s.cmd.Env, "OLLAMA_LIBRARY_PATH="+strings.Join(ggmlPaths, string(filepath.ListSeparator)))
+
 		envWorkarounds := [][2]string{}
 		for _, gpu := range gpus {
 			envWorkarounds = append(envWorkarounds, gpu.EnvWorkarounds...)
@@ -406,7 +410,8 @@ func NewLlamaServer(gpus discover.GpuInfoList, modelPath string, f *ggml.GGML, a
 		if envconfig.Debug() {
 			filteredEnv := []string{}
 			for _, ev := range s.cmd.Env {
-				if strings.HasPrefix(ev, "CUDA_") ||
+				if strings.HasPrefix(ev, "OLLAMA_") ||
+					strings.HasPrefix(ev, "CUDA_") ||
 					strings.HasPrefix(ev, "ROCR_") ||
 					strings.HasPrefix(ev, "ROCM_") ||
 					strings.HasPrefix(ev, "HIP_") ||

ml/backend.go

@@ -133,6 +133,7 @@ type Tensor interface {
 	Mul(ctx Context, t2 Tensor) Tensor
 	Mulmat(ctx Context, t2 Tensor) Tensor
 	MulmatFullPrec(ctx Context, t2 Tensor) Tensor
+	MulmatID(ctx Context, t2, ids Tensor) Tensor
 
 	Softmax(ctx Context) Tensor
 	LayerNorm(ctx Context, weight, bias Tensor, eps float32) Tensor
@@ -150,6 +151,7 @@ type Tensor interface {
 	Tanh(ctx Context) Tensor
 	GELU(ctx Context) Tensor
 	SILU(ctx Context) Tensor
+	Sigmoid(ctx Context) Tensor
 
 	Reshape(ctx Context, shape ...int) Tensor
 	View(ctx Context, offset int, shape ...int) Tensor
@@ -168,6 +170,8 @@ type Tensor interface {
 	Rows(ctx Context, t2 Tensor) Tensor
 	Copy(ctx Context, t2 Tensor) Tensor
 	Duplicate(ctx Context) Tensor
+
+	TopK(ctx Context, k int) Tensor
 }
 
 // ScaledDotProductAttention implements a fused attention

ml/backend/ggml/ggml.go

@@ -884,17 +884,32 @@ func (t *Tensor) MulmatFullPrec(ctx ml.Context, t2 ml.Tensor) ml.Tensor {
 	}
 }
 
+func (t *Tensor) MulmatID(ctx ml.Context, t2, ids ml.Tensor) ml.Tensor {
+	return &Tensor{
+		b: t.b,
+		t: C.ggml_mul_mat_id(ctx.(*Context).ctx, t.t, t2.(*Tensor).t, ids.(*Tensor).t),
+	}
+}
+
 func (t *Tensor) LayerNorm(ctx ml.Context, w, b ml.Tensor, eps float32) ml.Tensor {
-	tt := (&Tensor{b: t.b, t: C.ggml_norm(ctx.(*Context).ctx, t.t, C.float(eps))}).Mul(ctx, w)
-	if b != nil {
-		tt = tt.Add(ctx, b)
+	tt := C.ggml_norm(ctx.(*Context).ctx, t.t, C.float(eps))
+	if w != nil {
+		tt = C.ggml_mul(ctx.(*Context).ctx, tt, w.(*Tensor).t)
+		if b != nil {
+			tt = C.ggml_add(ctx.(*Context).ctx, tt, b.(*Tensor).t)
+		}
 	}
 
-	return tt
+	return &Tensor{b: t.b, t: tt}
 }
 
 func (t *Tensor) RMSNorm(ctx ml.Context, w ml.Tensor, eps float32) ml.Tensor {
-	return (&Tensor{b: t.b, t: C.ggml_rms_norm(ctx.(*Context).ctx, t.t, C.float(eps))}).Mul(ctx, w)
+	tt := C.ggml_rms_norm(ctx.(*Context).ctx, t.t, C.float(eps))
+	if w != nil {
+		tt = C.ggml_mul(ctx.(*Context).ctx, tt, w.(*Tensor).t)
+	}
+
+	return &Tensor{b: t.b, t: tt}
 }
 
 func (t *Tensor) Pad(ctx ml.Context, shape ...int) ml.Tensor {
@@ -995,6 +1010,13 @@ func (t *Tensor) Tanh(ctx ml.Context) ml.Tensor {
 	}
 }
 
+func (t *Tensor) Sigmoid(ctx ml.Context) ml.Tensor {
+	return &Tensor{
+		b: t.b,
+		t: C.ggml_sigmoid_inplace(ctx.(*Context).ctx, t.t),
+	}
+}
+
 func (t *Tensor) Unpad(ctx ml.Context, shape ...int) ml.Tensor {
 	if len(shape) != 4 {
 		panic("expected 4 dimensions")
@@ -1158,3 +1180,10 @@ func (t *Tensor) Duplicate(ctx ml.Context) ml.Tensor {
 		t: C.ggml_dup(ctx.(*Context).ctx, t.t),
 	}
 }
+
+func (t *Tensor) TopK(ctx ml.Context, k int) ml.Tensor {
+	return &Tensor{
+		b: t.b,
+		t: C.ggml_top_k(ctx.(*Context).ctx, t.t, C.int(k)),
+	}
+}

ml/backend/ggml/ggml/src/ggml.go

@@ -57,26 +57,20 @@ var OnceLoad = sync.OnceFunc(func() {
 		exe = "."
 	}
 
-	// PATH, LD_LIBRARY_PATH, and DYLD_LIBRARY_PATH are often
-	// set by the parent process, however, use a default value
-	// if the environment variable is not set.
-	var name, value string
+	var value string
 	switch runtime.GOOS {
 	case "darwin":
-		// On macOS, DYLD_LIBRARY_PATH is often not set, so
-		// we use the directory of the executable as the default.
-		name = "DYLD_LIBRARY_PATH"
 		value = filepath.Dir(exe)
 	case "windows":
-		name = "PATH"
 		value = filepath.Join(filepath.Dir(exe), "lib", "ollama")
 	default:
-		name = "LD_LIBRARY_PATH"
 		value = filepath.Join(filepath.Dir(exe), "..", "lib", "ollama")
 	}
 
-	paths, ok := os.LookupEnv(name)
+	// Avoid potentially loading incompatible GGML libraries
+	paths, ok := os.LookupEnv("OLLAMA_LIBRARY_PATH")
 	if !ok {
+		slog.Debug("OLLAMA_LIBRARY_PATH not set, falling back to default", "search", value)
 		paths = value
 	}
 

model/models/gemma2/model.go

@@ -42,7 +42,7 @@ func New(c fs.Config) (model.Model, error) {
 			&model.Vocabulary{
 				Values: c.Strings("tokenizer.ggml.tokens"),
 				Scores: c.Floats("tokenizer.ggml.scores"),
-				Types:  c.Uints("tokenizer.ggml.token_type"),
+				Types:  c.Ints("tokenizer.ggml.token_type"),
 				BOS:    int32(c.Uint("tokenizer.ggml.bos_token_id")),
 				EOS:    int32(c.Uint("tokenizer.ggml.eos_token_id")),
 			},

model/models/gemma3/model.go

@@ -59,7 +59,7 @@ func New(c fs.Config) (model.Model, error) {
 			&model.Vocabulary{
 				Values: c.Strings("tokenizer.ggml.tokens"),
 				Scores: c.Floats("tokenizer.ggml.scores"),
-				Types:  c.Uints("tokenizer.ggml.token_type"),
+				Types:  c.Ints("tokenizer.ggml.token_type"),
 				BOS:    int32(c.Uint("tokenizer.ggml.bos_token_id")),
 				AddBOS: c.Bool("tokenizer.ggml.add_bos_token", true),
 				EOS:    int32(1),

model/models/gemma3/model_text.go

@@ -49,7 +49,7 @@ func newTextModel(c fs.Config) *TextModel {
 			&model.Vocabulary{
 				Values: c.Strings("tokenizer.ggml.tokens"),
 				Scores: c.Floats("tokenizer.ggml.scores"),
-				Types:  c.Uints("tokenizer.ggml.token_type"),
+				Types:  c.Ints("tokenizer.ggml.token_type"),
 				BOS:    int32(c.Uint("tokenizer.ggml.bos_token_id")),
 				EOS:    int32(c.Uint("tokenizer.ggml.eos_token_id")),
 			},

model/models/llama/model.go

@@ -41,7 +41,7 @@ func New(c fs.Config) (model.Model, error) {
 			c.String("tokenizer.ggml.pretokenizer", `(?i:'s|'t|'re|'ve|'m|'ll|'d)|[^\r\n\p{L}\p{N}]?\p{L}+|\p{N}{1,3}| ?[^\s\p{L}\p{N}]+[\r\n]*|\s*[\r\n]+|\s+(?!\S)|\s+`),
 			&model.Vocabulary{
 				Values: c.Strings("tokenizer.ggml.tokens"),
-				Types:  c.Uints("tokenizer.ggml.token_type"),
+				Types:  c.Ints("tokenizer.ggml.token_type"),
 				Merges: c.Strings("tokenizer.ggml.merges"),
 				BOS:    int32(c.Uint("tokenizer.ggml.bos_token_id")),
 				AddBOS: c.Bool("tokenizer.ggml.add_bos_token", true),

model/models/llama4/model.go

@@ -0,0 +1,189 @@
+package llama4
+
+import (
+	"bytes"
+	"image"
+	"slices"
+	"sync"
+
+	"github.com/ollama/ollama/fs"
+	"github.com/ollama/ollama/kvcache"
+	"github.com/ollama/ollama/ml"
+	"github.com/ollama/ollama/ml/nn"
+	"github.com/ollama/ollama/model"
+	"github.com/ollama/ollama/model/input"
+)
+
+type Model struct {
+	model.Base
+	model.BytePairEncoding
+	ImageProcessor
+
+	*VisionModel `gguf:"v,vision"`
+	*Projector   `gguf:"mm"`
+	*TextModel
+}
+
+type Projector struct {
+	Linear1 *nn.Linear `gguf:"linear_1"`
+}
+
+func (p *Projector) Forward(ctx ml.Context, visionOutputs ml.Tensor) ml.Tensor {
+	return p.Linear1.Forward(ctx, visionOutputs)
+}
+
+func New(c fs.Config) (model.Model, error) {
+	m := Model{
+		BytePairEncoding: model.NewBytePairEncoding(
+			c.String("tokenizer.ggml.pretokenizer",
+				`[^\r\n\p{L}\p{N}]?[\p{Lu}\p{Lt}\p{Lm}\p{Lo}\p{M}]*[\p{Ll}\p{Lm}\p{Lo}\p{M}]+(?i:'s|'t|'re|'ve|'m|'ll|'d)?|[^\r\n\p{L}\p{N}]?[\p{Lu}\p{Lt}\p{Lm}\p{Lo}\p{M}]+[\p{Ll}\p{Lm}\p{Lo}\p{M}]*(?i:'s|'t|'re|'ve|'m|'ll|'d)?|\p{N}{1,3}| ?[^\s\p{L}\p{N}]+[\r\n/]*|\s*[\r\n]+|\s+(?!\S)|\s+`),
+			&model.Vocabulary{
+				Values: c.Strings("tokenizer.ggml.tokens"),
+				Types:  c.Ints("tokenizer.ggml.token_type"),
+				Merges: c.Strings("tokenizer.ggml.merges"),
+				BOS:    int32(c.Uint("tokenizer.ggml.bos_token_id")),
+				AddBOS: c.Bool("tokenizer.ggml.add_bos_token", true),
+				EOS:    int32(c.Uint("tokenizer.ggml.eos_token_id")),
+				AddEOS: c.Bool("tokenizer.ggml.add_eos_token", false),
+			},
+		),
+		ImageProcessor: newImageProcessor(c),
+		VisionModel:    newVisionModel(c),
+		TextModel:      newTextModel(c),
+	}
+
+	m.Cache = kvcache.NewWrapperCache(
+		kvcache.NewChunkedAttentionCache(int32(c.Uint("attention.chunk_size", 8192)), m.Shift),
+		kvcache.NewCausalCache(m.Shift),
+	)
+
+	return &m, nil
+}
+
+func (m *Model) EncodeMultimodal(ctx ml.Context, multimodalData []byte) (any, error) {
+	if len(m.VisionModel.Layers) < 1 {
+		return nil, model.ErrNoVisionModel
+	}
+
+	img, _, err := image.Decode(bytes.NewReader(multimodalData))
+	if err != nil {
+		return nil, err
+	}
+
+	pixelsLocal, pixelsGlobal, size, err := m.ProcessImage(img)
+	if err != nil {
+		return nil, err
+	}
+
+	tilesLocal, err := ctx.Input().FromFloatSlice(pixelsLocal, size.X, size.Y, m.numChannels)
+	if err != nil {
+		return nil, err
+	}
+
+	ratioW, ratioH := size.X/m.imageSize, size.Y/m.imageSize
+
+	tilesLocal = tilesLocal.Reshape(ctx, size.X/ratioW, ratioW, size.Y, m.numChannels).Permute(ctx, 0, 2, 1, 3).Contiguous(ctx)
+	tilesLocal = tilesLocal.Reshape(ctx, size.X/ratioW*size.Y/ratioH, ratioH, ratioW, m.numChannels).Permute(ctx, 0, 3, 2, 1).Contiguous(ctx)
+	tilesLocal = tilesLocal.Reshape(ctx, size.X/ratioW, size.Y/ratioH, m.numChannels, ratioH*ratioW)
+
+	pixelValues := tilesLocal
+
+	if len(pixelsGlobal) > 0 {
+		tilesGlobal, err := ctx.Input().FromFloatSlice(pixelsGlobal, m.imageSize, m.imageSize, m.numChannels)
+		if err != nil {
+			return nil, err
+		}
+
+		pixelValues = pixelValues.Concat(ctx, tilesGlobal, 3)
+	}
+
+	visionOutputs := m.VisionModel.Forward(ctx, pixelValues)
+	visionOutputs = visionOutputs.Reshape(ctx, visionOutputs.Dim(0), visionOutputs.Dim(1)*visionOutputs.Dim(2)*visionOutputs.Dim(3))
+	projectedOutputs := m.Projector.Forward(ctx, visionOutputs)
+	return &chunks{Model: m, Tensor: projectedOutputs, aspectRatio: image.Point{ratioW, ratioH}}, nil
+}
+
+type chunks struct {
+	*Model
+	ml.Tensor
+	aspectRatio image.Point
+
+	dataOnce sync.Once
+	data     []float32
+}
+
+type chunk struct {
+	*chunks
+	s, n int
+}
+
+func (r *chunk) floats() []float32 {
+	r.dataOnce.Do(func() {
+		temp := r.Backend().NewContext()
+		defer temp.Close()
+		temp.Forward(r.Tensor).Compute(r.Tensor)
+		r.data = r.Floats()
+	})
+
+	return r.data[r.s*r.Dim(0) : (r.s+r.n)*r.Dim(0)]
+}
+
+func (m *Model) PostTokenize(inputs []input.Input) ([]input.Input, error) {
+	var result []input.Input
+	for _, inp := range inputs {
+		if inp.Multimodal == nil {
+			result = append(result, inp)
+			continue
+		}
+
+		t := inp.Multimodal.(*chunks)
+		var imageInputs []input.Input
+		imageInputs = append(imageInputs, input.Input{Token: 200080}) // <|image_start|>
+
+		var offset int
+		patchesPerChunk := t.Dim(1)
+		if t.aspectRatio.Y*t.aspectRatio.X > 1 {
+			patchesPerChunk = t.Dim(1) / (t.aspectRatio.X*t.aspectRatio.Y + 1)
+
+			for range t.aspectRatio.Y {
+				for x := range t.aspectRatio.X {
+					imageInputs = append(imageInputs, input.Input{Token: 200092, Multimodal: &chunk{t, offset, patchesPerChunk}, MultimodalHash: inp.MultimodalHash, SameBatch: patchesPerChunk}) // <|patch|>
+					imageInputs = append(imageInputs, slices.Repeat([]input.Input{{Token: 200092}}, patchesPerChunk-1)...)
+					if x < t.aspectRatio.X-1 {
+						imageInputs = append(imageInputs, input.Input{Token: 200084}) // <|tile_x_separator|>
+					}
+					offset += patchesPerChunk
+				}
+
+				imageInputs = append(imageInputs, input.Input{Token: 200085}) // <|tile_y_separator|>
+			}
+		}
+
+		imageInputs = append(imageInputs, input.Input{Token: 200090})                                                                                                                 // <|image|>
+		imageInputs = append(imageInputs, input.Input{Token: 200092, Multimodal: &chunk{t, offset, patchesPerChunk}, MultimodalHash: inp.MultimodalHash, SameBatch: patchesPerChunk}) // <|patch|>
+		imageInputs = append(imageInputs, slices.Repeat([]input.Input{{Token: 200092}}, patchesPerChunk-1)...)
+		imageInputs = append(imageInputs, input.Input{Token: 200080}) // <|image_end|>
+
+		result = append(result, imageInputs...)
+	}
+
+	return result, nil
+}
+
+func (m *Model) Forward(ctx ml.Context, batch input.Batch) (ml.Tensor, error) {
+	positions, err := ctx.Input().FromIntSlice(batch.Positions, len(batch.Positions))
+	if err != nil {
+		return nil, err
+	}
+
+	outputs, err := ctx.Input().FromIntSlice(batch.Outputs, len(batch.Outputs))
+	if err != nil {
+		return nil, err
+	}
+
+	return m.TextModel.Forward(ctx, batch.Inputs, positions, outputs, batch, m.Cache), nil
+}
+
+func init() {
+	model.Register("llama4", New)
+}

model/models/llama4/model_text.go

@@ -0,0 +1,259 @@
+package llama4
+
+import (
+	"cmp"
+	"math"
+
+	"github.com/ollama/ollama/fs"
+	"github.com/ollama/ollama/kvcache"
+	"github.com/ollama/ollama/ml"
+	"github.com/ollama/ollama/ml/nn"
+	"github.com/ollama/ollama/model/input"
+)
+
+type TextAttention struct {
+	Query       *nn.Linear `gguf:"attn_q"`
+	Key         *nn.Linear `gguf:"attn_k"`
+	Value       *nn.Linear `gguf:"attn_v"`
+	Output      *nn.Linear `gguf:"attn_output"`
+	RopeFactors ml.Tensor  `gguf:"rope_factors"`
+}
+
+func (sa *TextAttention) Forward(ctx ml.Context, hiddenStates, positions, attentionScales ml.Tensor, cache kvcache.Cache, useRope bool, opts *TextOptions) ml.Tensor {
+	batchSize, headDim := hiddenStates.Dim(1), cmp.Or(opts.headDim, opts.hiddenSize/opts.numHeads)
+
+	query := sa.Query.Forward(ctx, hiddenStates)
+	key := sa.Key.Forward(ctx, hiddenStates)
+	value := sa.Value.Forward(ctx, hiddenStates)
+
+	query = query.Reshape(ctx, headDim, opts.numHeads, batchSize)
+	key = key.Reshape(ctx, headDim, opts.numKVHeads, batchSize)
+	value = value.Reshape(ctx, headDim, opts.numKVHeads, batchSize)
+
+	if useRope {
+		query = query.RoPE(ctx, positions, sa.RopeFactors, uint32(opts.ropeDim), uint32(0), opts.ropeBase, opts.ropeScale)
+		key = key.RoPE(ctx, positions, sa.RopeFactors, uint32(opts.ropeDim), uint32(0), opts.ropeBase, opts.ropeScale)
+	}
+
+	if opts.useQKNorm {
+		query = query.RMSNorm(ctx, nil, opts.eps)
+		key = key.RMSNorm(ctx, nil, opts.eps)
+	}
+
+	if attentionScales != nil && !useRope {
+		query = query.Mul(ctx, attentionScales)
+	}
+
+	attention := nn.Attention(ctx, query, key, value, 1./math.Sqrt(float64(headDim)), cache)
+	attention = attention.Reshape(ctx, opts.hiddenSize, batchSize)
+	return sa.Output.Forward(ctx, attention)
+}
+
+type TextMLP struct {
+	Gate *nn.Linear `gguf:"ffn_gate"`
+	Up   *nn.Linear `gguf:"ffn_up"`
+	Down *nn.Linear `gguf:"ffn_down"`
+}
+
+func (mlp *TextMLP) Forward(ctx ml.Context, hiddenStates ml.Tensor, opts *TextOptions) ml.Tensor {
+	hiddenStates = mlp.Gate.Forward(ctx, hiddenStates).SILU(ctx).Mul(ctx, mlp.Up.Forward(ctx, hiddenStates))
+	return mlp.Down.Forward(ctx, hiddenStates)
+}
+
+type TextExperts struct {
+	Gate ml.Tensor `gguf:"ffn_gate_exps.weight"`
+	Up   ml.Tensor `gguf:"ffn_up_exps.weight"`
+	Down ml.Tensor `gguf:"ffn_down_exps.weight"`
+}
+
+func (e *TextExperts) Forward(ctx ml.Context, hiddenStates, routerLogits ml.Tensor, opts *TextOptions) ml.Tensor {
+	experts := routerLogits.TopK(ctx, opts.numExpertsUsed)
+	scores := routerLogits.Sigmoid(ctx).Reshape(ctx, 1, opts.numExperts, hiddenStates.Dim(1)).Rows(ctx, experts)
+
+	hiddenStates = hiddenStates.Reshape(ctx, hiddenStates.Dim(0), 1, hiddenStates.Dim(1))
+	hiddenStates = hiddenStates.Repeat(ctx, 1, opts.numExpertsUsed)
+	hiddenStates = hiddenStates.Mul(ctx, scores)
+
+	upStates := e.Up.MulmatID(ctx, hiddenStates, experts)
+	gateStates := e.Gate.MulmatID(ctx, hiddenStates, experts)
+	downStates := e.Down.MulmatID(ctx, upStates.Mul(ctx, gateStates.SILU(ctx)), experts)
+
+	nextStates := downStates.View(ctx, 0, hiddenStates.Dim(0), downStates.Stride(2), hiddenStates.Dim(2))
+	for i := 1; i < opts.numExpertsUsed; i++ {
+		nextStates.Add(ctx, downStates.View(ctx, i*downStates.Stride(1), hiddenStates.Dim(0), downStates.Stride(2), hiddenStates.Dim(2)))
+	}
+
+	return nextStates
+}
+
+// TextSharedExpert is TextMLP with different tensor names
+type TextSharedExpert struct {
+	Gate *nn.Linear `gguf:"ffn_gate_shexp"`
+	Up   *nn.Linear `gguf:"ffn_up_shexp"`
+	Down *nn.Linear `gguf:"ffn_down_shexp"`
+}
+
+func (mlp *TextSharedExpert) Forward(ctx ml.Context, hiddenStates ml.Tensor, opts *TextOptions) ml.Tensor {
+	hiddenStates = mlp.Gate.Forward(ctx, hiddenStates).SILU(ctx).Mul(ctx, mlp.Up.Forward(ctx, hiddenStates))
+	return mlp.Down.Forward(ctx, hiddenStates)
+}
+
+type TextMOE struct {
+	Router       *nn.Linear `gguf:"ffn_gate_inp"`
+	Experts      *TextExperts
+	SharedExpert *TextSharedExpert
+}
+
+func (moe *TextMOE) Forward(ctx ml.Context, hiddenStates ml.Tensor, opts *TextOptions) ml.Tensor {
+	hiddenDim, sequenceLength, batchSize := hiddenStates.Dim(0), hiddenStates.Dim(1), hiddenStates.Dim(2)
+	hiddenStates = hiddenStates.Reshape(ctx, hiddenDim, sequenceLength*batchSize)
+	routerLogits := moe.Router.Forward(ctx, hiddenStates)
+
+	sharedStates := moe.SharedExpert.Forward(ctx, hiddenStates, opts)
+	routedStates := moe.Experts.Forward(ctx, hiddenStates, routerLogits, opts)
+	return sharedStates.Add(ctx, routedStates)
+}
+
+type TextFeedForward interface {
+	Forward(ctx ml.Context, hiddenStates ml.Tensor, opts *TextOptions) ml.Tensor
+}
+
+type TextLayer struct {
+	AttentionNorm *nn.LayerNorm `gguf:"attn_norm"`
+	Attention     *TextAttention
+
+	FFNNorm     *nn.LayerNorm `gguf:"ffn_norm"`
+	FeedForward TextFeedForward
+}
+
+func (d *TextLayer) Forward(ctx ml.Context, hiddenStates, positions, attentionScales, outputs ml.Tensor, cache kvcache.Cache, useRope bool, opts *TextOptions) ml.Tensor {
+	residual := hiddenStates
+
+	// self attention
+	hiddenStates = d.AttentionNorm.Forward(ctx, hiddenStates, opts.eps)
+	hiddenStates = d.Attention.Forward(ctx, hiddenStates, positions, attentionScales, cache, useRope, opts)
+
+	if outputs != nil {
+		hiddenStates = hiddenStates.Rows(ctx, outputs)
+		residual = residual.Rows(ctx, outputs)
+	}
+
+	hiddenStates = hiddenStates.Add(ctx, residual)
+	residual = hiddenStates
+
+	hiddenStates = d.FFNNorm.Forward(ctx, hiddenStates, opts.eps)
+	hiddenStates = d.FeedForward.Forward(ctx, hiddenStates, opts)
+
+	return residual.Add(ctx, hiddenStates)
+}
+
+type TextOptions struct {
+	hiddenSize                    int
+	numHeads, numKVHeads, headDim int
+	numExperts, numExpertsUsed    int
+	ropeDim                       int
+	ropeBase, ropeScale           float32
+	eps                           float32
+	interleaveLayerStep           int
+	noRopeInterval                int
+	useQKNorm                     bool
+	attentionTemperatureTuning    bool
+	attentionScale                float64
+	attentionFloorScale           float64
+}
+
+type TextModel struct {
+	Layers []TextLayer `gguf:"blk"`
+
+	TokenEmbedding *nn.Embedding `gguf:"token_embd"`
+	OutputNorm     *nn.LayerNorm `gguf:"output_norm"`
+	Output         *nn.Linear    `gguf:"output,alt:token_embd"`
+
+	*TextOptions
+}
+
+func newTextModel(c fs.Config) *TextModel {
+	layers := make([]TextLayer, c.Uint("block_count"))
+	interleaveLayerStep := c.Uint("interleave_moe_layer_step", 1)
+	for i := range layers {
+		if (i+1)%int(interleaveLayerStep) == 0 {
+			layers[i] = TextLayer{FeedForward: &TextMOE{}}
+		} else {
+			layers[i] = TextLayer{FeedForward: &TextMLP{}}
+		}
+	}
+
+	return &TextModel{
+		Layers: layers,
+		TextOptions: &TextOptions{
+			hiddenSize:                 int(c.Uint("embedding_length")),
+			numHeads:                   int(c.Uint("attention.head_count")),
+			numKVHeads:                 int(c.Uint("attention.head_count_kv")),
+			headDim:                    int(c.Uint("attention.head_dim", 128)),
+			numExperts:                 int(c.Uint("expert_count")),
+			numExpertsUsed:             int(c.Uint("expert_used_count")),
+			ropeDim:                    int(c.Uint("rope.dimension_count")),
+			ropeBase:                   c.Float("rope.freq_base"),
+			ropeScale:                  c.Float("rope.freq_scale", 1),
+			eps:                        c.Float("attention.layer_norm_rms_epsilon"),
+			interleaveLayerStep:        int(c.Uint("interleave_moe_layer_step", 1)),
+			noRopeInterval:             int(c.Uint("no_rope_interval", 4)),
+			useQKNorm:                  c.Bool("use_qk_norm", true),
+			attentionTemperatureTuning: c.Bool("attention.temperature_tuning", true),
+			attentionScale:             float64(c.Float("attention.scale", 0.1)),
+			attentionFloorScale:        float64(c.Float("attention.floor_scale", 8192)),
+		},
+	}
+}
+
+func (m *TextModel) Forward(ctx ml.Context, inputs, positions, outputs ml.Tensor, batch input.Batch, cache kvcache.Cache) ml.Tensor {
+	hiddenStates := m.TokenEmbedding.Forward(ctx, inputs).Duplicate(ctx)
+
+	for _, mi := range batch.Multimodal {
+		f32s := mi.Multimodal.(*chunk).floats()
+		img, err := ctx.Input().FromFloatSlice(f32s, len(f32s)/m.hiddenSize, m.hiddenSize)
+		if err != nil {
+			panic(err)
+		}
+
+		ctx.Forward(img.Copy(ctx, hiddenStates.View(ctx, mi.Index*hiddenStates.Stride(1), img.Dim(0)*img.Dim(1))))
+	}
+
+	var attentionScales ml.Tensor
+	if m.attentionTemperatureTuning {
+		scales := make([]float32, len(batch.Positions))
+		for i, p := range batch.Positions {
+			scales[i] = float32(math.Log(math.Floor(((float64(p)+1.0)/float64(m.attentionFloorScale))+1.0))*m.attentionScale + 1.0)
+		}
+
+		var err error
+		attentionScales, err = ctx.Input().FromFloatSlice(scales, 1, 1, len(scales))
+		if err != nil {
+			panic(err)
+		}
+	}
+
+	for i, layer := range m.Layers {
+		cache.SetLayer(i)
+		wc := cache.(*kvcache.WrapperCache)
+		wc.SetLayerType(1)
+		useChunkedAttention := (i+1)%m.noRopeInterval != 0
+		if useChunkedAttention {
+			wc.SetLayerType(0)
+		}
+
+		var lastLayerOutputs ml.Tensor
+		if i == len(m.Layers)-1 {
+			lastLayerOutputs = outputs
+		}
+
+		hiddenStates = layer.Forward(ctx, hiddenStates, positions, attentionScales, lastLayerOutputs, cache, useChunkedAttention, m.TextOptions)
+	}
+
+	hiddenStates = m.OutputNorm.Forward(ctx, hiddenStates, m.eps)
+	return m.Output.Forward(ctx, hiddenStates)
+}
+
+func (m *TextModel) Shift(ctx ml.Context, layer int, key, shift ml.Tensor) (ml.Tensor, error) {
+	return key.RoPE(ctx, shift, m.Layers[layer].Attention.RopeFactors, uint32(0), uint32(m.ropeDim), m.ropeBase, m.ropeScale), nil
+}

model/models/llama4/model_vision.go

@@ -0,0 +1,256 @@
+package llama4
+
+import (
+	"math"
+
+	"github.com/ollama/ollama/fs"
+	"github.com/ollama/ollama/ml"
+	"github.com/ollama/ollama/ml/nn"
+)
+
+type VisionAttention struct {
+	Query  *nn.Linear `gguf:"attn_q"`
+	Key    *nn.Linear `gguf:"attn_k"`
+	Value  *nn.Linear `gguf:"attn_v"`
+	Output *nn.Linear `gguf:"attn_output"`
+}
+
+// applyVisionRotaryEmbedding applies 2D rotary embedding to the input tensor.
+// This is equivalent to the Pytorch implmentation using half rotations:
+//
+//	cos, sin = torch.cos(freqs), torch.sin(freqs)
+//	cos = cos.unsqueeze(-1)
+//	sin = sin.unsqueeze(-1)
+//	t = t.reshape(*t.shape[:-1], -1, 2)
+//	t_out = (t * cos) + (_rotate_half(t) * sin)
+//	t_out = t_out.flatten(3)
+//
+// Which is equivalent to the Pytorch implementation using complex numbers:
+//
+//	t_ = torch.view_as_complex(t.float().reshape(*t.shape[:-1], -1, 2))
+//	freqs_ci = reshape_for_broadcast(freqs_ci=freq_cis, t=t_)  # freqs_ci[:,:,None,:]
+//	freqs_ci = freqs_ci.to(t_.device)
+//	t_out = torch.view_as_real(t_ * freqs_ci).flatten(3)
+//
+// Due to the 1) the dimensional and 2) the datatype limitations of current backends,
+// we need to use a different approach to achieve the same result.
+func applyVisionRotaryEmbedding(ctx ml.Context, t, cos, sin ml.Tensor) ml.Tensor {
+	width, height, channels, tiles := t.Dim(0), t.Dim(1), t.Dim(2), t.Dim(3)
+
+	t = t.Reshape(ctx, 2, t.Dim(0)/2, t.Dim(1)*t.Dim(2)*t.Dim(3))
+
+	// t1 = t[..., 0::2]
+	t1 := t.View(ctx, 0, 1, t.Stride(1), t.Dim(1), t.Stride(2), t.Dim(2)).Contiguous(ctx)
+	t1 = t1.Reshape(ctx, width/2, height, channels, tiles)
+
+	// t2 = t[..., 1::2]
+	t2 := t.View(ctx, t.Stride(0), 1, t.Stride(1), t.Dim(1), t.Stride(2), t.Dim(2)).Contiguous(ctx)
+	t2 = t2.Reshape(ctx, width/2, height, channels, tiles)
+
+	// cos_out = torch.stack((t1 * cos, t2 * cos), dim=-1)
+	cosOut := t1.Mul(ctx, cos).Concat(ctx, t2.Mul(ctx, cos), 0)
+	cosOut = cosOut.Reshape(ctx, cosOut.Dim(0)/2, 2, cosOut.Dim(1)*cosOut.Dim(2)*cosOut.Dim(3))
+	cosOut = cosOut.Permute(ctx, 1, 0, 2, 3).Contiguous(ctx)
+	cosOut = cosOut.Reshape(ctx, width, height, channels, tiles)
+
+	// sin_out = torch.stack((-t2 * sin, t1 * sin), dim=-1)
+	sinOut := t2.Neg(ctx).Mul(ctx, sin).Concat(ctx, t1.Mul(ctx, sin), 0)
+	sinOut = sinOut.Reshape(ctx, sinOut.Dim(0)/2, 2, sinOut.Dim(1)*sinOut.Dim(2)*sinOut.Dim(3))
+	sinOut = sinOut.Permute(ctx, 1, 0, 2, 3).Contiguous(ctx)
+	sinOut = sinOut.Reshape(ctx, width, height, channels, tiles)
+
+	return cosOut.Add(ctx, sinOut)
+}
+
+func (sa *VisionAttention) Forward(ctx ml.Context, hiddenState, cos, sin ml.Tensor, opts *VisionOptions) ml.Tensor {
+	headDim := opts.hiddenSize / opts.numHeads
+
+	query := sa.Query.Forward(ctx, hiddenState)
+	key := sa.Key.Forward(ctx, hiddenState)
+	value := sa.Value.Forward(ctx, hiddenState)
+
+	query = query.Reshape(ctx, headDim, opts.numHeads, query.Dim(1), query.Dim(2))
+	key = key.Reshape(ctx, headDim, opts.numHeads, key.Dim(1), key.Dim(2))
+	value = value.Reshape(ctx, headDim, opts.numHeads, value.Dim(1), value.Dim(2))
+
+	query = applyVisionRotaryEmbedding(ctx, query, cos, sin)
+	key = applyVisionRotaryEmbedding(ctx, key, cos, sin)
+
+	attention := nn.Attention(ctx, query, key, value, 1./math.Sqrt(float64(headDim)), nil)
+	attention = attention.Reshape(ctx, opts.hiddenSize, attention.Dim(2), attention.Dim(3))
+	return sa.Output.Forward(ctx, attention)
+}
+
+type VisionMLP struct {
+	FC1 *nn.Linear `gguf:"fc1"`
+	FC2 *nn.Linear `gguf:"fc2"`
+}
+
+func (mlp *VisionMLP) Forward(ctx ml.Context, hiddenStates ml.Tensor, opts *VisionOptions) ml.Tensor {
+	hiddenStates = mlp.FC1.Forward(ctx, hiddenStates).GELU(ctx)
+	hiddenStates = mlp.FC2.Forward(ctx, hiddenStates)
+	return hiddenStates
+}
+
+type VisionLayer struct {
+	InputLayerNorm *nn.LayerNorm `gguf:"attn_norm"`
+	*VisionAttention
+
+	PostAttentionNorm *nn.LayerNorm `gguf:"ffn_norm"`
+	*VisionMLP        `gguf:"mlp"`
+}
+
+func (e *VisionLayer) Forward(ctx ml.Context, hiddenStates, cos, sin ml.Tensor, opts *VisionOptions) ml.Tensor {
+	residual := hiddenStates
+
+	// self attention
+	hiddenStates = e.InputLayerNorm.Forward(ctx, hiddenStates, opts.eps)
+	hiddenStates = e.VisionAttention.Forward(ctx, hiddenStates, cos, sin, opts)
+	hiddenStates = hiddenStates.Add(ctx, residual)
+
+	// MLP
+	residual = hiddenStates
+	hiddenStates = e.PostAttentionNorm.Forward(ctx, hiddenStates, opts.eps)
+	hiddenStates = e.VisionMLP.Forward(ctx, hiddenStates, opts)
+	hiddenStates = hiddenStates.Add(ctx, residual)
+
+	return hiddenStates
+}
+
+type VisionAdapter struct {
+	FC1 *nn.Linear `gguf:"mlp.fc1"`
+	FC2 *nn.Linear `gguf:"mlp.fc2"`
+}
+
+func (a *VisionAdapter) Forward(ctx ml.Context, hiddenStates ml.Tensor, opts *VisionOptions) ml.Tensor {
+	patches := hiddenStates.Dim(1)
+	patchSize := int(math.Sqrt(float64(patches)))
+
+	hiddenStates = hiddenStates.Reshape(ctx, hiddenStates.Dim(0), patchSize, patchSize, hiddenStates.Dim(2))
+
+	channels, width, height, tiles := hiddenStates.Dim(0), hiddenStates.Dim(1), hiddenStates.Dim(2), hiddenStates.Dim(3)
+
+	channels, width = int(float32(channels)/opts.pixelShuffleRatio), int(float32(width)*opts.pixelShuffleRatio)
+	hiddenStates = hiddenStates.Reshape(ctx, channels, width, height, tiles)
+	hiddenStates = hiddenStates.Permute(ctx, 0, 2, 1, 3).Contiguous(ctx)
+
+	channels, height = int(float32(channels)/opts.pixelShuffleRatio), int(float32(height)*opts.pixelShuffleRatio)
+	hiddenStates = hiddenStates.Reshape(ctx, channels, width, height, tiles)
+	hiddenStates = hiddenStates.Permute(ctx, 0, 2, 1, 3).Contiguous(ctx)
+
+	hiddenStates = hiddenStates.Reshape(ctx, channels, width*height, tiles)
+
+	hiddenStates = a.FC1.Forward(ctx, hiddenStates).GELU(ctx)
+	hiddenStates = a.FC2.Forward(ctx, hiddenStates).GELU(ctx)
+	return hiddenStates
+}
+
+type VisionOptions struct {
+	hiddenSize, numHeads int
+	imageSize, patchSize int
+
+	ropeTheta         float32
+	eps               float32
+	pixelShuffleRatio float32
+}
+
+type PatchEmbedding struct {
+	*nn.Linear
+}
+
+func (p *PatchEmbedding) Forward(ctx ml.Context, hiddenStates ml.Tensor, opts *VisionOptions) ml.Tensor {
+	kernel := ctx.Input().Empty(ml.DTypeF32, opts.patchSize, opts.patchSize, hiddenStates.Dim(2))
+	hiddenStates = kernel.IM2Col(ctx, hiddenStates, opts.patchSize, opts.patchSize, 0, 0, 1, 1)
+	hiddenStates = hiddenStates.Reshape(ctx, hiddenStates.Dim(0), hiddenStates.Dim(1)*hiddenStates.Dim(2), hiddenStates.Dim(3))
+	return p.Linear.Forward(ctx, hiddenStates)
+}
+
+type VisionModel struct {
+	Layers []VisionLayer `gguf:"blk"`
+
+	*PatchEmbedding     `gguf:"patch_embedding"`
+	ClassEmbedding      ml.Tensor `gguf:"class_embedding"`
+	PositionalEmbedding ml.Tensor `gguf:"positional_embedding_vlm"`
+
+	LayerNormPre  *nn.LayerNorm `gguf:"layernorm_pre"`
+	LayerNormPost *nn.LayerNorm `gguf:"layernorm_post"`
+
+	*VisionAdapter `gguf:"vision_adapter"`
+
+	*VisionOptions
+}
+
+func newVisionModel(c fs.Config) *VisionModel {
+	return &VisionModel{
+		Layers: make([]VisionLayer, c.Uint("vision.block_count")),
+		VisionOptions: &VisionOptions{
+			hiddenSize:        int(c.Uint("vision.embedding_length")),
+			numHeads:          int(c.Uint("vision.attention.head_count")),
+			imageSize:         int(c.Uint("vision.image_size")),
+			patchSize:         int(c.Uint("vision.patch_size")),
+			ropeTheta:         float32(c.Float("vision.rope.freq_base")),
+			eps:               c.Float("vision.layer_norm_epsilon"),
+			pixelShuffleRatio: float32(c.Float("vision.pixel_shuffle_ratio")),
+		},
+	}
+}
+
+func (m *VisionModel) Forward(ctx ml.Context, pixelValues ml.Tensor) ml.Tensor {
+	hiddenStates := m.PatchEmbedding.Forward(ctx, pixelValues, m.VisionOptions)
+	hiddenStates = hiddenStates.Concat(ctx, m.ClassEmbedding.Repeat(ctx, 2, hiddenStates.Dim(2)), 1)
+
+	hiddenStates = hiddenStates.Add(ctx, m.PositionalEmbedding)
+	hiddenStates = m.LayerNormPre.Forward(ctx, hiddenStates, m.eps)
+
+	cos, sin := m.rotaryEmbedding(ctx)
+	for _, layer := range m.Layers {
+		hiddenStates = layer.Forward(ctx, hiddenStates, cos, sin, m.VisionOptions)
+	}
+
+	hiddenStates = m.LayerNormPost.Forward(ctx, hiddenStates, m.eps)
+	hiddenStates = hiddenStates.Unpad(ctx, 0, 1, 0, 0)
+	hiddenStates = m.VisionAdapter.Forward(ctx, hiddenStates, m.VisionOptions)
+	return hiddenStates
+}
+
+// floorDiv is a helper function to perform floor division. This mimics PyTorch's div(round_mode='floor') function
+// which in turn mimics Python's // operator.
+func floorDiv[T int | int16 | int32 | int64 | uint | uint16 | uint32 | uint64](a, b T) T {
+	if b == 0 {
+		panic("division by zero")
+	}
+
+	if (a >= 0 && b > 0) || (a <= 0 && b < 0) || a%b == 0 {
+		return a / b
+	}
+
+	return a/b - 1
+}
+
+func (m *VisionModel) rotaryEmbedding(ctx ml.Context) (ml.Tensor, ml.Tensor) {
+	patchesPerSide := m.imageSize / m.patchSize
+	numPatches := patchesPerSide*patchesPerSide + 1
+
+	headDim := m.hiddenSize / m.numHeads
+	freqDim := headDim / 2
+
+	freqs := make([]float32, numPatches*freqDim)
+	for i := range numPatches - 1 {
+		for j := 0; j < freqDim; j += 2 {
+			positionX := i*freqDim/2 + j/2
+			positionY := (i+numPatches)*freqDim/2 + j/2
+			ropeFreq := math.Pow(float64(m.ropeTheta), float64(j)*2/float64(headDim))
+			freqs[positionX] = float32(float64(1+i-floorDiv(i, patchesPerSide)*patchesPerSide) / ropeFreq)
+			freqs[positionY] = float32(float64(1+floorDiv(i, patchesPerSide)) / ropeFreq)
+		}
+	}
+
+	ropeFreqs, err := ctx.Input().FromFloatSlice(freqs, freqDim/2, numPatches, 2)
+	if err != nil {
+		panic(err)
+	}
+
+	ropeFreqs = ropeFreqs.Permute(ctx, 0, 2, 1, 3).Contiguous(ctx)
+	ropeFreqs = ropeFreqs.Reshape(ctx, freqDim, 1, numPatches)
+	return ropeFreqs.Cos(ctx), ropeFreqs.Sin(ctx)
+}

model/models/llama4/process_image.go

@@ -0,0 +1,167 @@
+package llama4
+
+import (
+	"cmp"
+	"image"
+	"math"
+	"slices"
+	"sort"
+
+	"golang.org/x/image/draw"
+
+	"github.com/ollama/ollama/fs"
+	"github.com/ollama/ollama/model/imageproc"
+)
+
+type ImageProcessor struct {
+	imageSize, patchSize, numChannels, maxUpscalingSize int
+}
+
+func newImageProcessor(c fs.Config) ImageProcessor {
+	return ImageProcessor{
+		imageSize:        int(c.Uint("vision.image_size")),
+		patchSize:        int(c.Uint("vision.patch_size")),
+		numChannels:      int(c.Uint("vision.num_channels", 3)),
+		maxUpscalingSize: int(c.Uint("vision.max_upscaling_size", 448)),
+	}
+}
+
+func factors(n int) []int {
+	var result []int
+	seen := make(map[int]bool)
+
+	for i := 1; i <= n/2; i++ {
+		if n%i == 0 && !seen[i] {
+			result = append(result, i)
+			seen[i] = true
+		}
+	}
+
+	result = append(result, n)
+	sort.Ints(result)
+
+	return result
+}
+
+func (p ImageProcessor) supportedResolutions() []image.Point {
+	var resolutions []image.Point
+
+	aspectMap := make(map[float64][]image.Point)
+	for i := p.patchSize; i >= 1; i-- {
+		for _, f := range factors(i) {
+			x := f
+			y := i / f
+			k := float64(y) / float64(x)
+			aspectMap[k] = append(aspectMap[k], image.Point{x, y})
+		}
+	}
+
+	for _, v := range aspectMap {
+		for _, i := range v {
+			resolutions = append(resolutions, image.Point{i.X * p.imageSize, i.Y * p.imageSize})
+		}
+	}
+
+	return resolutions
+}
+
+func (p ImageProcessor) bestResolution(img image.Point, possibleResolutions []image.Point, resizeToMaxCanvas bool) image.Point {
+	w, h := img.X, img.Y
+
+	scales := make([]float64, len(possibleResolutions))
+
+	for i, res := range possibleResolutions {
+		scaleW := float64(res.X) / float64(w)
+		scaleH := float64(res.Y) / float64(h)
+		scale := math.Min(scaleW, scaleH)
+
+		scales[i] = scale
+	}
+
+	minAboveOne := func(scales []float64) (float64, bool) {
+		min := math.MaxFloat64
+		found := false
+
+		for _, s := range scales {
+			if s >= 1.0 && s < min {
+				min = s
+				found = true
+			}
+		}
+
+		return min, found
+	}
+
+	bestScale, ok := minAboveOne(scales)
+	if resizeToMaxCanvas || !ok {
+		bestScale = slices.Max(scales)
+	}
+
+	var bestOptions []image.Point
+	for i, scale := range scales {
+		if math.Abs(scale-bestScale) < 1e-6 {
+			bestOptions = append(bestOptions, possibleResolutions[i])
+		}
+	}
+
+	var chosenResolution image.Point
+	if len(bestOptions) > 1 {
+		chosenResolution = slices.MinFunc(bestOptions, func(a, b image.Point) int {
+			return cmp.Compare(a.X*a.Y, b.X*b.Y)
+		})
+	} else {
+		chosenResolution = bestOptions[0]
+	}
+
+	return chosenResolution
+}
+
+func (p ImageProcessor) maxResolution(imageRes, targetRes image.Point) image.Point {
+	scaleW := float64(targetRes.X) / float64(imageRes.X)
+	scaleH := float64(targetRes.Y) / float64(imageRes.Y)
+
+	var newRes image.Point
+	if scaleW < scaleH {
+		newRes = image.Point{
+			targetRes.X,
+			int(math.Min(math.Floor(float64(imageRes.Y)*scaleW), float64(targetRes.Y))),
+		}
+	} else {
+		newRes = image.Point{
+			int(math.Min(math.Floor(float64(imageRes.X)*scaleH), float64(targetRes.X))),
+			targetRes.Y,
+		}
+	}
+
+	return newRes
+}
+
+func (p ImageProcessor) pad(src image.Image, outputSize image.Point) image.Image {
+	dst := image.NewRGBA(image.Rect(0, 0, outputSize.X, outputSize.Y))
+	draw.Draw(dst, src.Bounds(), src, image.Point{}, draw.Over)
+	return dst
+}
+
+func (p ImageProcessor) ProcessImage(img image.Image) (pixelsLocal, pixelsGlobal []float32, targetSize image.Point, _ error) {
+	img = imageproc.Composite(img)
+
+	targetSize = p.bestResolution(img.Bounds().Max, p.supportedResolutions(), false)
+	targetSizeWithoutDistortion := targetSize
+	if p.maxUpscalingSize > 0 {
+		targetSizeWithoutDistortion = p.maxResolution(img.Bounds().Max, targetSize)
+		targetSizeWithoutDistortion.X = min(max(img.Bounds().Max.X, p.maxUpscalingSize), targetSize.X)
+		targetSizeWithoutDistortion.Y = min(max(img.Bounds().Max.Y, p.maxUpscalingSize), targetSize.Y)
+	}
+
+	newSizeWithoutDistortion := p.maxResolution(img.Bounds().Max, targetSizeWithoutDistortion)
+
+	padded := p.pad(imageproc.Resize(img, newSizeWithoutDistortion, imageproc.ResizeBilinear), targetSize)
+	pixelsLocal = imageproc.Normalize(padded, imageproc.ImageNetStandardMean, imageproc.ImageNetStandardSTD, true, true)
+
+	if targetSize.X/p.imageSize*targetSize.Y/p.imageSize > 1 {
+		padded := imageproc.Resize(img, image.Point{p.imageSize, p.imageSize}, imageproc.ResizeBilinear)
+		pixelsGlobal = imageproc.Normalize(padded, imageproc.ImageNetStandardMean, imageproc.ImageNetStandardSTD, true, true)
+	}
+
+	return pixelsLocal, pixelsGlobal, targetSize, nil
+}

model/models/llama4/process_image_test.go

@@ -0,0 +1,300 @@
+package llama4
+
+import (
+	"cmp"
+	"image"
+	"image/color"
+	"reflect"
+	"slices"
+	"testing"
+
+	gocmp "github.com/google/go-cmp/cmp"
+)
+
+func TestFactors(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    int
+		expected []int
+	}{
+		{
+			name:     "factors of 1",
+			input:    1,
+			expected: []int{1},
+		},
+		{
+			name:     "factors of 2",
+			input:    2,
+			expected: []int{1, 2},
+		},
+		{
+			name:     "factors of 6",
+			input:    6,
+			expected: []int{1, 2, 3, 6},
+		},
+		{
+			name:     "factors of 28",
+			input:    28,
+			expected: []int{1, 2, 4, 7, 14, 28},
+		},
+		{
+			name:     "factors of 49",
+			input:    49,
+			expected: []int{1, 7, 49},
+		},
+		{
+			name:     "factors of 97 (prime)",
+			input:    97,
+			expected: []int{1, 97},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			actual := factors(tt.input)
+			if !reflect.DeepEqual(actual, tt.expected) {
+				t.Errorf("factors(%d) = %v; want %v", tt.input, actual, tt.expected)
+			}
+		})
+	}
+}
+
+func TestSupportedResolutions(t *testing.T) {
+	expectedResolutions := []image.Point{
+		{X: 3360, Y: 336},
+		{X: 672, Y: 2688},
+		{X: 336, Y: 1344},
+		{X: 336, Y: 4032},
+		{X: 1008, Y: 1344},
+		{X: 1344, Y: 1008},
+		{X: 336, Y: 1680},
+		{X: 1680, Y: 336},
+		{X: 336, Y: 5040},
+		{X: 4032, Y: 336},
+		{X: 2352, Y: 336},
+		{X: 2688, Y: 672},
+		{X: 1344, Y: 336},
+		{X: 5376, Y: 336},
+		{X: 2352, Y: 672},
+		{X: 672, Y: 1008},
+		{X: 1008, Y: 672},
+		{X: 336, Y: 5376},
+		{X: 1680, Y: 1008},
+		{X: 5040, Y: 336},
+		{X: 336, Y: 3024},
+		{X: 3024, Y: 336},
+		{X: 336, Y: 2688},
+		{X: 672, Y: 1344},
+		{X: 336, Y: 672},
+		{X: 336, Y: 2352},
+		{X: 2016, Y: 672},
+		{X: 1008, Y: 336},
+		{X: 336, Y: 3360},
+		{X: 336, Y: 4368},
+		{X: 1008, Y: 1680},
+		{X: 336, Y: 4704},
+		{X: 4704, Y: 336},
+		{X: 1344, Y: 672},
+		{X: 672, Y: 336},
+		{X: 2688, Y: 336},
+		{X: 3696, Y: 336},
+		{X: 2016, Y: 336},
+		{X: 1344, Y: 1344},
+		{X: 1008, Y: 1008},
+		{X: 672, Y: 672},
+		{X: 336, Y: 336},
+		{X: 4368, Y: 336},
+		{X: 672, Y: 2016},
+		{X: 336, Y: 1008},
+		{X: 336, Y: 3696},
+		{X: 672, Y: 1680},
+		{X: 1680, Y: 672},
+		{X: 336, Y: 2016},
+		{X: 672, Y: 2352},
+	}
+
+	sortResolutionFunc := func(a, b image.Point) int {
+		return cmp.Or(cmp.Compare(a.X, b.X), cmp.Compare(a.Y, b.Y))
+	}
+
+	slices.SortStableFunc(expectedResolutions, sortResolutionFunc)
+
+	imgProc := ImageProcessor{
+		imageSize:        336,
+		patchSize:        16,
+		numChannels:      3,
+		maxUpscalingSize: 448,
+	}
+
+	actualResolutions := imgProc.supportedResolutions()
+	slices.SortStableFunc(actualResolutions, sortResolutionFunc)
+
+	if diff := gocmp.Diff(expectedResolutions, actualResolutions); diff != "" {
+		t.Errorf("supportedResolutions() mismatch (-want +got):\n%s", diff)
+	}
+}
+
+func TestBestResolution(t *testing.T) {
+	tests := []struct {
+		name        string
+		size        image.Point
+		resolutions []image.Point
+		max         bool
+		expected    image.Point
+	}{
+		{
+			"normal",
+			image.Point{800, 600},
+			[]image.Point{
+				{300, 200},
+				{640, 480},
+				{800, 600},
+				{1024, 768},
+				{1600, 1200},
+			},
+			false,
+			image.Point{800, 600},
+		},
+		{
+			"max",
+			image.Point{800, 600},
+			[]image.Point{
+				{300, 200},
+				{640, 480},
+				{800, 600},
+				{1024, 768},
+				{1600, 1200},
+			},
+			true,
+			image.Point{1600, 1200},
+		},
+		{
+			"mid",
+			image.Point{1000, 700},
+			[]image.Point{
+				{300, 200},
+				{640, 480},
+				{800, 600},
+				{1024, 768},
+				{1600, 1200},
+			},
+			false,
+			image.Point{1024, 768},
+		},
+		{
+			"smol",
+			image.Point{100, 100},
+			[]image.Point{
+				{300, 200},
+				{640, 480},
+				{800, 600},
+				{1024, 768},
+				{1600, 1200},
+			},
+			false,
+			image.Point{300, 200},
+		},
+		{
+			"huge",
+			image.Point{10000, 10000},
+			[]image.Point{
+				{300, 200},
+				{640, 480},
+				{800, 600},
+				{1024, 768},
+				{1600, 1200},
+			},
+			false,
+			image.Point{1600, 1200},
+		},
+	}
+
+	p := ImageProcessor{}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			actual := p.bestResolution(tt.size, tt.resolutions, tt.max)
+			if diff := gocmp.Diff(tt.expected, actual); diff != "" {
+				t.Errorf("best resolution mismatch (-want +got):\n%s", diff)
+			}
+		})
+	}
+}
+
+func TestMaxResolution(t *testing.T) {
+	tests := []struct {
+		name      string
+		origRes   image.Point
+		targetRes image.Point
+		expected  image.Point
+	}{
+		{
+			"normal",
+			image.Point{800, 600},
+			image.Point{800, 600},
+			image.Point{800, 600},
+		},
+		{
+			"skew",
+			image.Point{800, 600},
+			image.Point{1100, 700},
+			image.Point{933, 700},
+		},
+	}
+
+	p := ImageProcessor{}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			actual := p.maxResolution(tt.origRes, tt.targetRes)
+			if !reflect.DeepEqual(actual, tt.expected) {
+				t.Errorf("max resolution; got %v want %v", actual, tt.expected)
+			}
+		})
+	}
+}
+
+func TestProcessImage(t *testing.T) {
+	imgProc := ImageProcessor{
+		imageSize:        336,
+		patchSize:        16,
+		numChannels:      3,
+		maxUpscalingSize: 448,
+	}
+
+	generateImage := func(seed int) image.Image {
+		width, height := 20, 10
+		img := image.NewRGBA(image.Rect(0, 0, width, height))
+
+		for x := range width {
+			// Use the seed to vary color generation
+			r := uint8((seed + x*11) % 256)
+			g := uint8((seed + x*17) % 256)
+			b := uint8((seed + x*23) % 256)
+
+			c := color.RGBA{R: r, G: g, B: b, A: 255}
+			for y := range height {
+				img.Set(x, y, c)
+			}
+		}
+
+		return img
+	}
+
+	pixelsLocal, pixelsGlobal, targetSize, err := imgProc.ProcessImage(generateImage(12))
+	if err != nil {
+		t.Error(err)
+	}
+
+	if n := len(pixelsLocal); n != 336*336*3 {
+		t.Errorf("unexpected size of f32s: %d", n)
+	}
+
+	if n := len(pixelsGlobal); n > 0 {
+		t.Errorf("unexpected size of f32s: %d", n)
+	}
+
+	if !targetSize.Eq(image.Point{336, 336}) {
+		t.Errorf("unexpected target size: %v", targetSize)
+	}
+}

model/models/mistral3/model_text.go

@@ -152,7 +152,7 @@ func NewTextModel(c fs.Config) (*TextModel, error) {
 			c.String("tokenizer.ggml.pretokenizer", `[^\r\n\p{L}\p{N}]?[\p{Lu}\p{Lt}\p{Lm}\p{Lo}\p{M}]*[\p{Ll}\p{Lm}\p{Lo}\p{M}]+|[^\r\n\p{L}\p{N}]?[\p{Lu}\p{Lt}\p{Lm}\p{Lo}\p{M}]+[\p{Ll}\p{Lm}\p{Lo}\p{M}]*|\p{N}| ?[^\s\p{L}\p{N}]+[\r\n/]*|\s*[\r\n]+|\s+(?!\S)|\s+`),
 			&model.Vocabulary{
 				Values: c.Strings("tokenizer.ggml.tokens"),
-				Types:  c.Uints("tokenizer.ggml.token_type"),
+				Types:  c.Ints("tokenizer.ggml.token_type"),
 				Merges: c.Strings("tokenizer.ggml.merges"),
 				BOS:    int32(c.Uint("tokenizer.ggml.bos_token_id", 1)),
 				AddBOS: c.Bool("tokenizer.ggml.add_bos_token", true),

model/models/mllama/model.go

@@ -43,7 +43,7 @@ func New(c fs.Config) (model.Model, error) {
 			c.String("tokenizer.ggml.pretokenizer", `(?i:'s|'t|'re|'ve|'m|'ll|'d)|[^\r\n\p{L}\p{N}]?\p{L}+|\p{N}{1,3}| ?[^\s\p{L}\p{N}]+[\r\n]*|\s*[\r\n]+|\s+(?!\S)|\s+`),
 			&model.Vocabulary{
 				Values: c.Strings("tokenizer.ggml.tokens"),
-				Types:  c.Uints("tokenizer.ggml.token_type"),
+				Types:  c.Ints("tokenizer.ggml.token_type"),
 				Merges: c.Strings("tokenizer.ggml.merges"),
 				BOS:    int32(c.Uint("tokenizer.ggml.bos_token_id")),
 				AddBOS: c.Bool("tokenizer.ggml.add_bos_token", true),

model/models/mllama/model_text.go

@@ -177,7 +177,7 @@ type TextDecoder struct {
 func (d *TextDecoder) Forward(ctx ml.Context, hiddenState, positionIDs, outputs, mask, crossAttentionStates, crossAttentionMask ml.Tensor, cache *kvcache.WrapperCache, opts *TextModelOptions) ml.Tensor {
 	for i, layer := range d.Layers {
 		layerType := selfAttentionLayer
-		if slices.Contains(opts.crossAttentionLayers, uint32(i)) {
+		if slices.Contains(opts.crossAttentionLayers, int32(i)) {
 			layerType = crossAttentionLayer
 		}
 
@@ -202,7 +202,7 @@ type TextModelOptions struct {
 	eps, ropeBase, ropeScale         float32
 	ropeDim                          uint32
 
-	crossAttentionLayers []uint32
+	crossAttentionLayers []int32
 }
 
 type TextModel struct {
@@ -225,7 +225,7 @@ func newTextModel(c fs.Config) *TextModel {
 	var decoderLayers []TextDecoderLayer
 	for i := range c.Uint("block_count") {
 		var textDecoderLayer TextDecoderLayer
-		if slices.Contains(c.Uints("attention.cross_attention_layers"), i) {
+		if slices.Contains(c.Ints("attention.cross_attention_layers"), int32(i)) {
 			textDecoderLayer = &TextCrossAttentionDecoderLayer{}
 		} else {
 			textDecoderLayer = &TextSelfAttentionDecoderLayer{}
@@ -244,7 +244,7 @@ func newTextModel(c fs.Config) *TextModel {
 			ropeBase:             c.Float("rope.freq_base"),
 			ropeScale:            c.Float("rope.freq_scale", 1),
 			ropeDim:              c.Uint("rope.dimension_count"),
-			crossAttentionLayers: c.Uints("attention.cross_attention_layers"),
+			crossAttentionLayers: c.Ints("attention.cross_attention_layers"),
 		},
 	}
 }

model/models/mllama/model_vision.go

@@ -96,10 +96,10 @@ type VisionEncoder struct {
 	Layers []VisionEncoderLayer
 }
 
-func (e *VisionEncoder) Forward(ctx ml.Context, hiddenState ml.Tensor, intermediateLayersIndices []uint32, opts *VisionModelOptions) (ml.Tensor, []ml.Tensor) {
+func (e *VisionEncoder) Forward(ctx ml.Context, hiddenState ml.Tensor, intermediateLayersIndices []int32, opts *VisionModelOptions) (ml.Tensor, []ml.Tensor) {
 	var intermediateHiddenStates []ml.Tensor
 	for i, layer := range e.Layers {
-		if slices.Contains(intermediateLayersIndices, uint32(i)) {
+		if slices.Contains(intermediateLayersIndices, int32(i)) {
 			intermediateHiddenStates = append(intermediateHiddenStates, hiddenState.Reshape(ctx, append([]int{1}, hiddenState.Shape()...)...))
 		}
 
@@ -154,7 +154,7 @@ type VisionModelOptions struct {
 	imageSize, patchSize           int
 	eps                            float32
 
-	intermediateLayersIndices []uint32
+	intermediateLayersIndices []int32
 }
 
 type VisionModel struct {
@@ -229,7 +229,7 @@ func newVisionModel(c fs.Config) *VisionModel {
 
 			eps: c.Float("vision.attention.layer_norm_epsilon"),
 
-			intermediateLayersIndices: c.Uints("vision.intermediate_layers_indices"),
+			intermediateLayersIndices: c.Ints("vision.intermediate_layers_indices"),
 		},
 	}
 }

model/models/models.go

@@ -4,6 +4,7 @@ import (
 	_ "github.com/ollama/ollama/model/models/gemma2"
 	_ "github.com/ollama/ollama/model/models/gemma3"
 	_ "github.com/ollama/ollama/model/models/llama"
+	_ "github.com/ollama/ollama/model/models/llama4"
 	_ "github.com/ollama/ollama/model/models/mistral3"
 	_ "github.com/ollama/ollama/model/models/mllama"
 )

model/process_text.go

@@ -37,7 +37,7 @@ type TextProcessor interface {
 
 type Vocabulary struct {
 	Values []string
-	Types  []uint32
+	Types  []int32
 	Scores []float32
 	Merges []string
 

model/process_text_spm_test.go

@@ -35,9 +35,9 @@ func loadSentencePieceVocab(t *testing.T) SentencePieceModel {
 			sentencepiece.ModelProto_SentencePiece_CONTROL,
 			sentencepiece.ModelProto_SentencePiece_UNUSED,
 			sentencepiece.ModelProto_SentencePiece_BYTE:
-			v.Types = append(v.Types, uint32(t))
+			v.Types = append(v.Types, int32(t))
 		default:
-			tt := uint32(sentencepiece.ModelProto_SentencePiece_NORMAL)
+			tt := int32(sentencepiece.ModelProto_SentencePiece_NORMAL)
 			// todo parse the special tokens file
 			//   - this will roundtrip correctly but the <start_of_turn> and
 			//     <end_of_turn> tokens aren't processed
@@ -124,7 +124,7 @@ func TestSentencePieceModelDecodeByteTokens(t *testing.T) {
 			"<0xC3>",
 			"<0xA3>",
 		},
-		Types: []uint32{
+		Types: []int32{
 			TOKEN_TYPE_NORMAL,
 			TOKEN_TYPE_BYTE,
 			TOKEN_TYPE_BYTE,

model/process_text_test.go

@@ -28,7 +28,7 @@ func llama(t testing.TB) BytePairEncoding {
 		t.Fatal(err)
 	}
 
-	types := make([]uint32, len(vocab))
+	types := make([]int32, len(vocab))
 	tokens := make([]string, len(vocab))
 	for token, id := range vocab {
 		tokens[id] = token

progress/bar.go

@@ -64,7 +64,7 @@ func formatDuration(d time.Duration) string {
 func (b *Bar) String() string {
 	termWidth, _, err := term.GetSize(int(os.Stderr.Fd()))
 	if err != nil {
-		termWidth = defaultTermWidth
+		termWidth = 80
 	}
 
 	var pre strings.Builder

progress/progress.go

@@ -4,16 +4,8 @@ import (
 	"bufio"
 	"fmt"
 	"io"
-	"os"
 	"sync"
 	"time"
-
-	"golang.org/x/term"
-)
-
-const (
-	defaultTermWidth  = 80
-	defaultTermHeight = 24
 )
 
 type State interface {
@@ -91,11 +83,6 @@ func (p *Progress) Add(key string, state State) {
 }
 
 func (p *Progress) render() {
-	_, termHeight, err := term.GetSize(int(os.Stderr.Fd()))
-	if err != nil {
-		termHeight = defaultTermHeight
-	}
-
 	p.mu.Lock()
 	defer p.mu.Unlock()
 
@@ -115,9 +102,8 @@ func (p *Progress) render() {
 	fmt.Fprint(p.w, "\033[1G")
 
 	// render progress lines
-	maxHeight := min(len(p.states), termHeight)
-	for i := len(p.states) - maxHeight; i < len(p.states); i++ {
-		fmt.Fprint(p.w, p.states[i].String(), "\033[K")
+	for i, state := range p.states {
+		fmt.Fprint(p.w, state.String(), "\033[K")
 		if i < len(p.states)-1 {
 			fmt.Fprint(p.w, "\n")
 		}

runner/ollamarunner/runner.go

@@ -723,7 +723,9 @@ func (m *multiLPath) String() string {
 	return strings.Join(*m, ", ")
 }
 
-func (s *Server) reserveWorstCaseGraph() error {
+// TODO(jessegross): This is causing tensor allocation failures with large batches when not offloaded
+// to the GPU
+/*func (s *Server) reserveWorstCaseGraph() error {
 	ctx := s.model.Backend().NewContext()
 	defer ctx.Close()
 
@@ -766,7 +768,7 @@ func (s *Server) reserveWorstCaseGraph() error {
 	}
 
 	return nil
-}
+}*/
 
 func (s *Server) loadModel(
 	ctx context.Context,
@@ -803,10 +805,10 @@ func (s *Server) loadModel(
 	s.seqs = make([]*Sequence, s.parallel)
 	s.seqsSem = semaphore.NewWeighted(int64(s.parallel))
 
-	err = s.reserveWorstCaseGraph()
+	/*err = s.reserveWorstCaseGraph()
 	if err != nil {
 		panic(err)
-	}
+	}*/
 
 	s.status = llm.ServerStatusReady
 	s.ready.Done()

sample/samplers_test.go

@@ -74,7 +74,6 @@ func modelHelper(t testing.TB) model.BytePairEncoding {
 		t.Fatal(err)
 	}
 
-	types := make([]uint32, len(vocab))
 	tokens := make([]string, len(vocab))
 	for token, id := range vocab {
 		tokens[id] = token
@@ -86,7 +85,7 @@ func modelHelper(t testing.TB) model.BytePairEncoding {
 		``,
 		&model.Vocabulary{
 			Values: tokens,
-			Types:  types,
+			Types:  make([]int32, len(vocab)),
 			Merges: merges,
 		},
 	)

server/create.go

@@ -295,7 +295,7 @@ func convertFromSafetensors(files map[string]string, baseLayers []*layerGGML, is
 	}
 	defer bin.Close()
 
-	f, _, err := ggml.Decode(bin, 0)
+	f, _, err := ggml.Decode(bin, 1024)
 	if err != nil {
 		return nil, err
 	}
@@ -457,7 +457,7 @@ func quantizeLayer(layer *layerGGML, quantizeType string, fn func(resp api.Progr
 		return nil, err
 	}
 
-	f, _, err := ggml.Decode(temp, 0)
+	f, _, err := ggml.Decode(temp, 1024)
 	if err != nil {
 		slog.Error(fmt.Sprintf("error decoding ggml: %s\n", err))
 		return nil, err
@@ -499,7 +499,7 @@ func ggufLayers(digest string, fn func(resp api.ProgressResponse)) ([]*layerGGML
 
 	var offset int64
 	for offset < stat.Size() {
-		f, n, err := ggml.Decode(blob, 0)
+		f, n, err := ggml.Decode(blob, 1024)
 		if errors.Is(err, io.EOF) {
 			break
 		} else if err != nil {

server/images.go

@@ -75,7 +75,7 @@ func (m *Model) Capabilities() []model.Capability {
 	if err == nil {
 		defer r.Close()
 
-		f, _, err := ggml.Decode(r, 0)
+		f, _, err := ggml.Decode(r, 1024)
 		if err == nil {
 			if _, ok := f.KV()[fmt.Sprintf("%s.pooling_type", f.KV().Architecture())]; ok {
 				capabilities = append(capabilities, model.CapabilityEmbedding)

server/internal/registry/server.go

@@ -73,8 +73,13 @@ type statusCodeRecorder struct {
 func (r *statusCodeRecorder) WriteHeader(status int) {
 	if r._status == 0 {
 		r._status = status
+		r.ResponseWriter.WriteHeader(status)
 	}
-	r.ResponseWriter.WriteHeader(status)
+}
+
+func (r *statusCodeRecorder) Write(b []byte) (int, error) {
+	r._status = r.status()
+	return r.ResponseWriter.Write(b)
 }
 
 var (

server/model.go

@@ -64,7 +64,7 @@ func parseFromModel(ctx context.Context, name model.Name, fn func(api.ProgressRe
 			}
 			defer blob.Close()
 
-			f, _, err := ggml.Decode(blob, 0)
+			f, _, err := ggml.Decode(blob, 1024)
 			if err != nil {
 				return nil, err
 			}

server/routes.go

@@ -18,6 +18,7 @@ import (
 	"os"
 	"os/signal"
 	"path/filepath"
+	"regexp"
 	"slices"
 	"strings"
 	"syscall"
@@ -1512,6 +1513,7 @@ func (s *Server) ChatHandler(c *gin.Context) {
 	if req.Messages[0].Role != "system" && m.System != "" {
 		msgs = append([]api.Message{{Role: "system", Content: m.System}}, msgs...)
 	}
+	msgs = filterThinkTags(msgs, m)
 
 	prompt, images, err := chatPrompt(c.Request.Context(), m, r.Tokenize, opts, msgs, req.Tools)
 	if err != nil {
@@ -1640,3 +1642,23 @@ func handleScheduleError(c *gin.Context, name string, err error) {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 	}
 }
+
+var thinkTagRegexp = regexp.MustCompile(`<think>(?s).*?</think>(\n)*`)
+
+func filterThinkTags(msgs []api.Message, m *Model) []api.Message {
+	if m.Config.ModelFamily == "qwen3" || model.ParseName(m.Name).Model == "deepseek-r1" {
+		finalUserIndex := -1
+		for i, msg := range msgs {
+			if msg.Role == "user" {
+				finalUserIndex = i
+			}
+		}
+
+		for i, msg := range msgs {
+			if msg.Role == "assistant" && i < finalUserIndex {
+				msgs[i].Content = thinkTagRegexp.ReplaceAllString(msg.Content, "")
+			}
+		}
+	}
+	return msgs
+}

server/routes_generate_test.go

@@ -299,9 +299,6 @@ func TestGenerateChat(t *testing.T) {
 				{Role: "user", Content: "Hello!"},
 			},
 			Stream: &stream,
-			Options: map[string]any{
-				"num_ctx": 1024,
-			},
 		})
 
 		if w.Code != http.StatusOK {
@@ -324,9 +321,6 @@ func TestGenerateChat(t *testing.T) {
 				{Role: "user", Content: "Hello!"},
 			},
 			Stream: &stream,
-			Options: map[string]any{
-				"num_ctx": 1024,
-			},
 		})
 
 		if w.Code != http.StatusOK {
@@ -350,9 +344,6 @@ func TestGenerateChat(t *testing.T) {
 				{Role: "user", Content: "Help me write tests."},
 			},
 			Stream: &stream,
-			Options: map[string]any{
-				"num_ctx": 1024,
-			},
 		})
 
 		if w.Code != http.StatusOK {

server/routes_test.go

@@ -15,6 +15,7 @@ import (
 	"net/http/httptest"
 	"os"
 	"path/filepath"
+	"reflect"
 	"sort"
 	"strings"
 	"testing"
@@ -746,3 +747,128 @@ func TestNormalize(t *testing.T) {
 		})
 	}
 }
+
+func TestFilterThinkTags(t *testing.T) {
+	type testCase struct {
+		msgs  []api.Message
+		want  []api.Message
+		model *Model
+	}
+	testCases := []testCase{
+		{
+			msgs: []api.Message{
+				{Role: "user", Content: "Hello, world!"},
+				{Role: "assistant", Content: "<think>Thinking... about the answer</think>abc"},
+				{Role: "user", Content: "What is the answer?"},
+			},
+			want: []api.Message{
+				{Role: "user", Content: "Hello, world!"},
+				{Role: "assistant", Content: "abc"},
+				{Role: "user", Content: "What is the answer?"},
+			},
+			model: &Model{
+				Config: ConfigV2{
+					ModelFamily: "qwen3",
+				},
+			},
+		},
+		// with newlines inside the think tag aned newlines after
+		{
+			msgs: []api.Message{
+				{Role: "user", Content: "Hello, world!"},
+				{Role: "assistant", Content: "<think>Thinking... \n\nabout \nthe answer</think>\n\nabc\ndef"},
+				{Role: "user", Content: "What is the answer?"},
+			},
+			want: []api.Message{
+				{Role: "user", Content: "Hello, world!"},
+				{Role: "assistant", Content: "abc\ndef"},
+				{Role: "user", Content: "What is the answer?"},
+			},
+			model: &Model{
+				Config: ConfigV2{
+					ModelFamily: "qwen3",
+				},
+			},
+		},
+		// should leave thinking tags if it's after the last user message
+		{
+			msgs: []api.Message{
+				{Role: "user", Content: "Hello, world!"},
+				{Role: "assistant", Content: "<think>Thinking...</think>after"},
+				{Role: "user", Content: "What is the answer?"},
+				{Role: "assistant", Content: "<think>thinking again</think>hjk"},
+				{Role: "assistant", Content: "<think>thinking yet again</think>hjk"},
+			},
+			want: []api.Message{
+				{Role: "user", Content: "Hello, world!"},
+				{Role: "assistant", Content: "after"},
+				{Role: "user", Content: "What is the answer?"},
+				{Role: "assistant", Content: "<think>thinking again</think>hjk"},
+				{Role: "assistant", Content: "<think>thinking yet again</think>hjk"},
+			},
+			model: &Model{
+				Config: ConfigV2{
+					ModelFamily: "qwen3",
+				},
+			},
+		},
+		{
+			// shouldn't strip anything because the model family isn't one of the hardcoded ones
+			msgs: []api.Message{
+				{Role: "user", Content: "Hello, world!"},
+				{Role: "assistant", Content: "<think>Thinking... about the answer</think>abc"},
+				{Role: "user", Content: "What is the answer?"},
+			},
+			want: []api.Message{
+				{Role: "user", Content: "Hello, world!"},
+				{Role: "assistant", Content: "<think>Thinking... about the answer</think>abc"},
+				{Role: "user", Content: "What is the answer?"},
+			},
+			model: &Model{
+				Config: ConfigV2{
+					ModelFamily: "llama3",
+				},
+			},
+		},
+		{
+			// deepseek-r1:-prefixed model
+			msgs: []api.Message{
+				{Role: "user", Content: "Hello, world!"},
+				{Role: "assistant", Content: "<think>Thinking... about the answer</think>abc"},
+				{Role: "user", Content: "What is the answer?"},
+			},
+			want: []api.Message{
+				{Role: "user", Content: "Hello, world!"},
+				{Role: "assistant", Content: "abc"},
+				{Role: "user", Content: "What is the answer?"},
+			},
+			model: &Model{
+				Name:      "registry.ollama.ai/library/deepseek-r1:latest",
+				ShortName: "deepseek-r1:7b",
+				Config:    ConfigV2{},
+			},
+		},
+	}
+
+	for i, tc := range testCases {
+		filtered := filterThinkTags(tc.msgs, tc.model)
+
+		if !reflect.DeepEqual(filtered, tc.want) {
+			t.Errorf("messages differ for case %d:", i)
+			for i := range tc.want {
+				if i >= len(filtered) {
+					t.Errorf("  missing message %d: %+v", i, tc.want[i])
+					continue
+				}
+				if !reflect.DeepEqual(filtered[i], tc.want[i]) {
+					t.Errorf("  message %d:\n    want: %+v\n    got:  %+v", i, tc.want[i], filtered[i])
+				}
+			}
+			if len(filtered) > len(tc.want) {
+				for i := len(tc.want); i < len(filtered); i++ {
+					t.Errorf("  extra message %d: %+v", i, filtered[i])
+				}
+			}
+		}
+	}
+}

server/sched.go

@@ -81,6 +81,10 @@ func InitScheduler(ctx context.Context) *Scheduler {
 
 // context must be canceled to decrement ref count and release the runner
 func (s *Scheduler) GetRunner(c context.Context, model *Model, opts api.Options, sessionDuration *api.Duration) (chan *runnerRef, chan error) {
+	if opts.NumCtx < 4 {
+		opts.NumCtx = 4
+	}
+
 	req := &LlmRequest{
 		ctx:             c,
 		model:           model,
@@ -110,11 +114,6 @@ func (s *Scheduler) Run(ctx context.Context) {
 	}()
 }
 
-const (
-	defaultContextLength  = 4096
-	smallGpuContextLength = 2048
-)
-
 func (s *Scheduler) processPending(ctx context.Context) {
 	for {
 		select {
@@ -167,17 +166,6 @@ func (s *Scheduler) processPending(ctx context.Context) {
 						gpus = s.getGpuFn()
 					}
 
-					if pending.origNumCtx == -1 {
-						if len(gpus) == 1 && gpus[0].Library != "cpu" && gpus[0].TotalMemory <= 4096*1024*1024 {
-							slog.Info("GPU is small, limiting default context window", "num_ctx", smallGpuContextLength)
-							pending.opts.NumCtx = smallGpuContextLength
-							pending.origNumCtx = smallGpuContextLength
-						} else {
-							pending.opts.NumCtx = defaultContextLength
-							pending.origNumCtx = defaultContextLength
-						}
-					}
-
 					if envconfig.MaxRunners() <= 0 {
 						// No user specified MaxRunners, so figure out what automatic setting to use
 						// If all GPUs have reliable free memory reporting, defaultModelsPerGPU * the number of GPUs
@@ -453,10 +441,9 @@ func (s *Scheduler) load(req *LlmRequest, f *ggml.GGML, gpus discover.GpuInfoLis
 		estimatedVRAM:   llama.EstimatedVRAM(),
 		estimatedTotal:  llama.EstimatedTotal(),
 		loading:         true,
-		refCount:        1,
 	}
 	runner.numParallel = numParallel
-	runner.refMu.Lock()
+	runner.refMu.Lock() // hold lock until running or aborted
 
 	s.loadedMu.Lock()
 	s.loaded[req.model.ModelPath] = runner
@@ -467,13 +454,13 @@ func (s *Scheduler) load(req *LlmRequest, f *ggml.GGML, gpus discover.GpuInfoLis
 		defer runner.refMu.Unlock()
 		if err = llama.WaitUntilRunning(req.ctx); err != nil {
 			slog.Error("error loading llama server", "error", err)
-			runner.refCount--
 			req.errCh <- err
 			slog.Debug("triggering expiration for failed load", "model", runner.modelPath)
 			s.expiredCh <- runner
 			return
 		}
 		slog.Debug("finished setting up runner", "model", req.model.ModelPath)
+		runner.refCount++
 		runner.loading = false
 		go func() {
 			<-req.ctx.Done()
@@ -491,7 +478,12 @@ func (s *Scheduler) updateFreeSpace(allGpus discover.GpuInfoList) {
 	}
 	predMap := map[predKey]uint64{} // Sum up the total predicted usage per GPU for all runners
 	s.loadedMu.Lock()
+	runners := make([]*runnerRef, 0, len(s.loaded))
 	for _, r := range s.loaded {
+		runners = append(runners, r)
+	}
+	s.loadedMu.Unlock()
+	for _, r := range runners {
 		r.refMu.Lock()
 		if r.llama != nil {
 			for _, gpu := range allGpus {
@@ -502,7 +494,6 @@ func (s *Scheduler) updateFreeSpace(allGpus discover.GpuInfoList) {
 		}
 		r.refMu.Unlock()
 	}
-	s.loadedMu.Unlock()
 
 	// Now that we've summed up all the GPU usage predictions across all the loaded runners, update the gpu list
 	for i := range allGpus {
@@ -549,10 +540,8 @@ func (s *Scheduler) filterGPUsWithoutLoadingModels(allGpus discover.GpuInfoList)
 
 // TODO consolidate sched_types.go
 type runnerRef struct {
-	refMu sync.Mutex
-	// refCond   sync.Cond // Signaled on transition from 1 -> 0 refCount
+	refMu    sync.Mutex
 	refCount uint // prevent unloading if > 0
-	// unloading bool      // set to true when we are trying to unload the runner
 
 	llama          llm.LlamaServer
 	loading        bool                 // True only during initial load, then false forever
@@ -823,8 +812,8 @@ func (s *Scheduler) unloadAllRunners() {
 
 func (s *Scheduler) expireRunner(model *Model) {
 	s.loadedMu.Lock()
-	defer s.loadedMu.Unlock()
 	runner, ok := s.loaded[model.ModelPath]
+	s.loadedMu.Unlock()
 	if ok {
 		runner.refMu.Lock()
 		runner.expiresAt = time.Now()

server/sched_test.go

@@ -148,7 +148,6 @@ func newScenarioRequest(t *testing.T, ctx context.Context, modelName string, est
 		successCh:       make(chan *runnerRef, 1),
 		errCh:           make(chan error, 1),
 	}
-	b.req.opts.NumCtx = 4096
 	b.srv = &mockLlm{estimatedVRAM: estimatedVRAM, estimatedVRAMByGPU: map[string]uint64{"": estimatedVRAM}}
 	return b
 }