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

https://www.nav-bookmarks.win/chatgpt-offers-a-permanent-free-plan-with-basic-features-available-to-all

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