ChatGPT offers a permanent Free plan anyone can use without a trial....

https://domgodwinson38.gumroad.com/p/what-s-the-cleanest-way-to-test-multiple-ai-models-in-one-place-for-7-days

ChatGPT offers a permanent Free plan anyone can use without a trial. Occasionally, targeted users get a free trial of ChatGPT Plus, which may require a card and auto-renews when it ends