Update app.py

app.py

@@ -24,7 +24,7 @@ class ConversationalAI:
         response_content = ''
         
         stream = self.client.chat.completions.create(
-                                                    model="llama3-70b-8192",
+                                                    model="meta-llama/Meta-Llama-3.1-8B-Instruct",
                                                     messages=messages,
                                                     max_tokens=1024,
                                                     temperature=1.3,