ChatGPT offers a permanent Free plan with basic access for all users....

https://www.lima-bookmarkings.win/chatgpt-offers-a-free-plan-that-s-always-available-to-all-users-no-trial

ChatGPT offers a permanent Free plan with basic access for all users. Occasionally, targeted promotions provide a free trial of ChatGPT Plus, which may require you to enter payment info and auto-renews when the trial ends