Update app.py

app.py

@@ -208,7 +208,7 @@ async def validate_content(
         
         response = client.chat_completion(
             messages=messages,
-            model="HuggingFaceH4/zephyr-7b-beta",
+            model="mistralai/Mistral-7B-Instruct-v0.3",
             max_tokens=1000,
             temperature=0.2,  # Low temperature for consistent validation
             top_p=0.9