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

https://connersinterestingblog.theglensecret.com/is-there-any-legit-way-to-try-gpt-if-no-chatgpt-promotion-shows-up

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