What is the best ChatGPT API model for creating articles

I want to create article through chatgpt api, Which model is more powerful and cost efficient for this. My preferred model is ChatGPT3.5 should I use gpt-3.5-turbo-instruct? Please note i want to pass only to messages

  1. System message. (example: “act like a abc…”)
  2. User message. (example: “create a article about abc…”)

Use the playground to test. You can try all the iterations you can think of before you even write one line of code. And you can also try all the different models. Win win