Update app.py

app.py

@@ -39,14 +39,18 @@ final_answer = FinalAnswerTool()
 # If the agent does not answer, the model is overloaded, please use another model or the following Hugging Face Endpoint that also contains qwen2.5 coder:
 # model_id='https://pflgm2locj2t89co.us-east-1.aws.endpoints.huggingface.cloud' 
 
-model = HfApiModel(
-max_tokens=2096,
-temperature=0.5,
-model_id='Qwen/Qwen2.5-Coder-32B-Instruct',# it is possible that this model may be overloaded
-custom_role_conversions=None,
+from smolagents import OpenAIServerModel
+
+model = OpenAIServerModel(
+    max_tokens=2096,
+    temperature=0.5,
+    model_id="gpt-4",  # Puoi anche usare "gpt-3.5-turbo" se vuoi
+    api_key=os.getenv("OPENAI_API_KEY"),  # 🔒 Usa la tua API Key in modo sicuro
+    custom_role_conversions=None,
 )
 
 
+
 # Import tool from Hub
 image_generation_tool = load_tool("agents-course/text-to-image", trust_remote_code=True)