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

https://wiki-nest.win/index.php/What_Does_ChatGPT_Free_Include_Compared_to_Plus_During_Peak_Times%3F

ChatGPT offers a permanent Free plan anyone can use without a time limit. Occasionally, targeted users may get trials for the Plus plan, which sometimes require a credit card and auto-renew after the trial ends