Update agent model in Agent class to 'meta-llama/Llama-3.3-70B-Instruct'

app.py

@@ -157,7 +157,7 @@ def generate_audio(prompt: str) -> object:
 ## agent definition
 class Agent:
     def __init__(self, ):
-        client = HfApiModel("Qwen/Qwen3-32B", provider="nebius", api_key=os.getenv("NEBIUS_API_KEY"))
+        client = HfApiModel("meta-llama/Llama-3.3-70B-Instruct", provider="nebius", api_key=os.getenv("NEBIUS_API_KEY"))
         self.agent = CodeAgent(
             model=client,
             tools=[DuckDuckGoSearchTool(max_results=5), VisitWebpageTool(max_output_length=20000), generate_image, download_images, transcribe_audio],