Update app.py

app.py

@@ -151,7 +151,7 @@ def generate_slides_content(user_input, num_slides):
                 {"role": "system", "content": "You are a helpful assistant that generates PowerPoint presentation content and return the content in JSON format."},
                 {"role": "user", "content": prompt}
             ],
-            model="llama-3.1-8b-instant",
+            model="mixtral-8x7b-32768",
             temperature=1,
             max_tokens=8000
         )