Update app.py

app.py

@@ -16,7 +16,7 @@ if not (llama_cloud_key and groq_key and mxbai_key):
     )
 
 # models name
-llm_model_name = "llama-3.1-70b-versatile"
+llm_model_name = "gemma2-9b-it"
 embed_model_name = "mixedbread-ai/mxbai-embed-large-v1"
 
 # Initialize the parser