Update app.py

app.py

@@ -85,7 +85,7 @@ def extract_text_from_image(image_url: str) -> str:
 class OpalAgent:
     def __init__(self):
         # Use a small, fast model to save tokens/costs
-        model_name = "Qwen/Qwen3-8B"  
+        model_name = "meta-llama/Llama-3.3-70B-Instruct"  
         
         self.llm = InferenceClient(model_name, token=HF_TOKEN)