Update app.py

app.py

@@ -50,7 +50,7 @@ final_answer = FinalAnswerTool()
 model = HfApiModel(
 max_tokens=2096,
 temperature=0.5,
-model_id='Qwen/Qwen3-0.6B',# it is possible that this model may be overloaded
+model_id='nvidia/Llama-3.1-Nemotron-Nano-4B-v1.1',# it is possible that this model may be overloaded
 custom_role_conversions=None,
 )