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

https://wiki-aero.win/index.php/Who_Counts_as_Eligible_for_the_US_Service_Member_ChatGPT_Plus_Offer%3F

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