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

https://wiki-triod.win/index.php/How_Do_I_Check_if_My_ChatGPT_Subscription_Is_Billed_on_Web_or_in_an_App%3F

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