Update app.py

app.py

@@ -70,9 +70,13 @@ def select_model(provider="groq"):
     HF_MODEL_NAME = "huggingfaceh4/zephyr-7b-beta"
     
     if provider == "groq":
-        api_key = os.getenv("GROQ_API_KEY")
+        return LiteLLMModel(model_id="groq/llama-3.1-8b-instant",
+                                api_key=os.getenv("GROQ_API_KEY"))
         if not api_key:
             raise ValueError("GROQ_API_KEY environment variable is not set")
+
+
+            
         return LiteLLMModel(model_id=GROQ_MODEL_NAME, api_key=api_key)
     elif provider == "hf":
         api_key = os.getenv("HF_TOKEN")