Update chain_app.py

chain_app.py

@@ -672,7 +672,7 @@ async def main(message: cl.Message):
         # Send the concatenated content as a message
         await cl.Message(content=complete_content).send()
 
-    elif chat_profile == 'Llama-3.1-70B':
+    elif chat_profile == 'Llama-3.1-8B':
         completion = groq_client.chat.completions.create(
             model="llama-3.1-8b-instant",
             messages=[