Update app.py

app.py

@@ -8,18 +8,17 @@ def run_hello_world(api_key):
     if not api_key:
         return "Please enter your OpenAI API key."
 
-    # Set environment variable dynamically
     os.environ["OPENAI_API_KEY"] = api_key
 
     try:
-        # Create model + agent
-        model = OpenAIModel(model="gpt-4o-mini")
+        # ✅ FIX: use model_id instead of model
+        model = OpenAIModel(model_id="gpt-4o-mini")
+
         agent = CodeAgent(
             model=model,
             tools=[]
         )
 
-        # Run hello world task
         result = agent.run("Say hello world in a fun way!")
         return result
 
@@ -27,7 +26,6 @@ def run_hello_world(api_key):
         return f"Error: {str(e)}"
 
 
-# Gradio UI
 with gr.Blocks() as demo:
     gr.Markdown("# 🤖 SmolAgents Hello World Demo")
     gr.Markdown("Paste your OpenAI API key and press the button.")