Update app.py

app.py

@@ -149,7 +149,7 @@ print(f"Using device => {device}")
 
 hf_token = os.environ.get("HF_TOKEN")
 openai_api_key = os.environ.get("OPENAI_API_KEY")
-model_id = "ChienChung/my-llama-1b"
+model_id = "meta-llama/Llama-3.2-3B-Instruct"
 
 config_path = hf_hub_download(
     repo_id=model_id,