diff --git a/esphome/components/api/proto.h b/esphome/components/api/proto.h
index 86c7b696a5..b77a86ca93 100644
--- a/esphome/components/api/proto.h
+++ b/esphome/components/api/proto.h
@@ -692,11 +692,8 @@ class DumpBuffer {
 
 class ProtoMessage {
  public:
-  // Non-virtual defaults for messages with no fields; generated message classes hide all four.
-  // encode_msg/calc_size_msg are the type-erased entry points (static over const void *), so
-  // &T::encode_msg is a MessageEncodeFn with no per-type thunk; encode()/calculate_size() serve
-  // direct callers and forward to the statics in generated classes. No virtual dispatch: every
-  // call site knows the concrete type, which keeps these out of the per-message vtables.
+  // Non-virtual defaults for messages with no fields; generated classes hide all four. The
+  // static encode_msg/calc_size_msg take const void * so &T::encode_msg needs no thunk.
   static uint8_t *encode_msg(const void *self, ProtoWriteBuffer &buffer PROTO_ENCODE_DEBUG_PARAM) {
     return buffer.get_pos();
   }
diff --git a/script/api_protobuf/api_protobuf.py b/script/api_protobuf/api_protobuf.py
index 0131c75484..c919d80295 100755
--- a/script/api_protobuf/api_protobuf.py
+++ b/script/api_protobuf/api_protobuf.py
@@ -2841,9 +2841,7 @@ def build_message_type(
             )
             for line in encode
         ]
-        # The body is a static function taking the message as const void *, so its address is
-        # already a MessageEncodeFn and callers need no per-type thunk. The member encode() below
-        # forwards to it for direct callers.
+        # Static over const void * so &T::encode_msg is a MessageEncodeFn without a thunk.
         o = f"{speed_attr}uint8_t *{desc.name}::encode_msg(const void *self, ProtoWriteBuffer &buffer PROTO_ENCODE_DEBUG_PARAM) {{\n"
         o += f"  const auto &msg = *static_cast<const {desc.name} *>(self);\n"
         o += "  uint8_t *__restrict__ pos = buffer.get_pos();\n"