Update app.py

app.py

@@ -187,7 +187,7 @@ final_answer = FinalAnswerTool()
 model = HfApiModel(
 max_tokens=2096,
 temperature=0.5,
-model_id='Qwen/Qwen3-8B',# it is possible that this model may be overloaded
+model_id='meta-llama/Llama-3.1-8B-Instruct',# it is possible that this model may be overloaded
 custom_role_conversions=None,
 )