Update app.py

app.py

@@ -1183,7 +1183,7 @@ def create_image(model: str) -> None:
 
 def create_text_image() -> None:
     """
-    Generate text or image by using llm models like "gpt-4o".
+    Generate text or image by using LLM models like 'gpt-4o'.
     """
 
     page_title = "LangChain LLM Agent"
@@ -1200,31 +1200,28 @@ def create_text_image() -> None:
     # Initialize all the session state variables
     initialize_session_state_variables()
 
-    gpt_models = ("gpt-4o-mini", "gpt-4o")
+    # Define model options directly here
+    model_options = ["gpt-4o-mini", "gpt-4o", "dall-e-3"]
 
+    # Sidebar content
     with st.sidebar:
-        st.write("")
-
+        st.write("**Select a Model**")
         model = st.radio(
             label="Models",
             options=model_options,
+            index=1,  # Default to the second option
             label_visibility="collapsed",
-            index=1,
             on_change=switch_between_apps,
         )
 
+        st.write("---")
+        st.write("xyz", unsafe_allow_html=True)
+
+    # Main logic for generating text or image
     if model == "dall-e-3":
         create_image(model)
     else:
         create_text(model)
 
-    with st.sidebar:
-        st.write("---")
-        st.write(
-            "xyz",
-            unsafe_allow_html=True,
-        )
-
-
 if __name__ == "__main__":
     create_text_image()