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

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

ChatGPT offers a permanent Free plan anyone can use without time limits. Occasionally, targeted users may get a Plus free trial, which usually requires a payment card and auto-renews when it ends