Update app.py

app.py

@@ -91,7 +91,7 @@ async def set_starters():
 @cl.on_chat_start
 async def start():
     cl.user_session.set("llm", OpenRouter(
-        model="shisa-ai/shisa-v2-llama3.3-70b:free",
+        model="moonshotai/kimi-k2:free",
         temperature=0.1,
         max_tokens=1024,
         api_key=os.getenv("API_KEY")