Update app.py

app.py

@@ -17,7 +17,7 @@ class BasicAgent:
     def __init__(self):
         self.model = OpenAIServerModel("gpt-4o", max_tokens=8096)
         self.agent =  CodeAgent(
-            model=multimodal_model,
+            model=self.model,
             verbosity_level=0,
             tools=[VisitWebpageTool()],
             max_steps=10,