ChatGPT offers a permanent Free plan anyone can use without a time limit....

https://www.bookmark-belt.win/chatgpt-offers-a-free-plan-that-s-available-to-all-users-with-no-time-limit

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