update system msg and model

app.py

@@ -59,10 +59,10 @@ content_type = st.selectbox("Select content type:", ["Blog", "Tweet"])
 if st.button("Generate") and content_type:
     with st.spinner('Generating text...'):
         try:
-            prompt = f"Write a blog about 500 words in length using {st.session_state['retrieved_text']}" if content_type == "Blog" else f"Compose a tweet using {st.session_state['retrieved_text']}"
-            response = client.chat.completions.create(model="gpt-3.5-turbo-16k",
+            prompt = f"Write an engaging blog that is about 500 words in length using the content from the product catalog to ground the content in factuaility. Here is the content: {st.session_state['retrieved_text']}" if content_type == "Blog" else f"Compose a tweet using {st.session_state['retrieved_text']}"
+            response = client.chat.completions.create(model="gpt-3.5-turbo-0125",
                                                       messages=[
-                                                          {"role": "system", "content": "You are a helpful assistant."},
+                                                          {"role": "system", "content": "You are a helpful assistant that writes compelling and interesting marketing copy such as blogs and tweets."},
                                                           {"role": "user", "content": prompt}
                                                       ])
             generated_text = response.choices[0].message.content