ChatGPT offers a free plan that anyone can use without time limits....

https://super-wiki.win/index.php/Is_the_ChatGPT_Student_Offer_Actually_a_Free_ChatGPT_Plus_Subscription%3F

ChatGPT offers a free plan that anyone can use without time limits. Occasionally, targeted users may get a free trial of the Plus plan, which sometimes requires a card and auto-renews after the trial ends