Update app.py

app.py

@@ -21,7 +21,7 @@ if not hf_token:
     raise ValueError("Please set the HUGGINGFACE_TOKEN environment variable")
 
 # Define the model name
-model_name = "meta-llama/Llama-2-7b-hf"
+model_name = "meta-llama/Llama-2-7b-chat-hf"
 
 try:
     logger.info("Starting model initialization...")