Update app.py

app.py

@@ -18,9 +18,10 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 # ----- THIS IS WERE YOU CAN BUILD WHAT YOU WANT ------
 class BasicAgent:
     def __init__(self):
-        model =model = LiteLLMModel(
-            model_id="gemini/gemini-2.0-flash-lite",
-            api_key=os.getenv("GEMINI_API_KEY")
+        model =OpenAIServerModel(
+            model_id="llama-3.3-70b-versatile",
+            api_base="https://api.groq.com/openai/v1",
+            api_key=os.getenv("GROQ_API_KEY")
         )
         self.agent = CodeAgent(
             model=model,