Update app.py

update llm to 8b llama

app.py

@@ -33,7 +33,7 @@ callback_manager = CallbackManager([llama_debug])
 Settings.callback_manager = callback_manager
 
 # set up LLM
-llm = Groq(model="llama3-70b-8192")#"llama3-8b-8192")
+llm = Groq(model="llama3-8b-8192")#"llama3-70b-8192")
 Settings.llm = llm
 
 # set up embedding model