Update app.py

app.py

@@ -764,7 +764,7 @@ def groq_with_memory(message: str, topic: str = "general", retries: int = 3) ->
             messages = [{"role": "user", "content": message.strip()}]
         
         payload = {
-            "model": "gemma2-9b-it",
+            "model": "Llama-3-8B-8192",
             "messages": messages,
             "max_tokens": 2000,
             "temperature": 0.7