diff --git a/lib/music_library/chats/collection_chat.ex b/lib/music_library/chats/collection_chat.ex
index 19e9baf2..35a32485 100644
--- a/lib/music_library/chats/collection_chat.ex
+++ b/lib/music_library/chats/collection_chat.ex
@@ -13,7 +13,7 @@ defmodule MusicLibrary.Chats.CollectionChat do
   def stream_response(messages, {summary, record_count}, callback) do
     instructions = build_instructions(summary, record_count)
 
-    OpenAI.chat_stream(messages, on_chunk: callback, instructions: instructions)
+    OpenAI.chat_stream(messages, on_chunk: callback, instructions: instructions, model: "gpt-5.1")
   end
 
   defp build_instructions(collection_summary, record_count) do