diff --git a/esphome/components/api/api_pb2.h b/esphome/components/api/api_pb2.h
index 728250baf4..1f91c5c179 100644
--- a/esphome/components/api/api_pb2.h
+++ b/esphome/components/api/api_pb2.h
@@ -991,7 +991,7 @@ class NoiseEncryptionSetKeyRequest : public ProtoDecodableMessage {
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "noise_encryption_set_key_request"; }
 #endif
-  std::string key{};  // Storage for decoded data
+  std::string key{};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif
@@ -1914,7 +1914,7 @@ class BluetoothGATTWriteRequest : public ProtoDecodableMessage {
   uint64_t address{0};
   uint32_t handle{0};
   bool response{false};
-  std::string data{};  // Storage for decoded data
+  std::string data{};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif
@@ -1948,7 +1948,7 @@ class BluetoothGATTWriteDescriptorRequest : public ProtoDecodableMessage {
 #endif
   uint64_t address{0};
   uint32_t handle{0};
-  std::string data{};  // Storage for decoded data
+  std::string data{};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif
@@ -2283,7 +2283,7 @@ class VoiceAssistantAudio : public ProtoDecodableMessage {
 #endif
   const uint8_t *data_ptr_{nullptr};
   size_t data_len_{0};
-  std::string data{};  // Storage for decoded data
+  std::string data{};
   void set_data(const uint8_t *data, size_t len) {
     this->data_ptr_ = data;
     this->data_len_ = len;
diff --git a/script/api_protobuf/api_protobuf.py b/script/api_protobuf/api_protobuf.py
index 4b6ed891a8..b23f788256 100755
--- a/script/api_protobuf/api_protobuf.py
+++ b/script/api_protobuf/api_protobuf.py
@@ -625,9 +625,7 @@ class BytesType(TypeInfo):
 
         # Add std::string storage if message needs decoding
         if self.needs_decode:
-            content.append(
-                f"std::string {self.field_name}{{}};  // Storage for decoded data"
-            )
+            content.append(f"std::string {self.field_name}{{}};")
 
         # Add setter method if message needs encoding
         if self.needs_encode: