Update app.py

app.py

@@ -30,7 +30,7 @@ llm = None
 
 # Model Selection
 #st.header("Model Selection")
-model_choice = st.radio("Select LLM", ["OpenAI Model", "Groq-based LLM"], index=0, horizontal=True)
+model_choice = st.radio("Select LLM", ["OpenAI Model", "Groq-based LLM"], index=1, horizontal=True)
 
 
 # API Key Validation and LLM Initialization