Update app.py

app.py

@@ -11,7 +11,7 @@ def chat_with_bot(user_input):
     }
 
     payload = {
-        "model": "google/gemini-2.0-flash-exp:free",
+        "model": "qwen/qwen3-14b:free",
         "messages": [{"role": "user", "content": user_input}]
     }