Update app.py

app.py

@@ -42,7 +42,7 @@ if not api_token:
 
 # Initialize the HuggingFace LLM
 llm = HuggingFaceEndpoint(
-    endpoint_url="https://api-inference.huggingface.co/models/gpt2",  # Using gpt2 model
+    endpoint_url="https://api-inference.huggingface.co/models/gpt-3.5-turbo",
     model_kwargs={"api_key": api_token}
 )