ChatGPT offers a permanent Free plan with basic features for everyone....

https://mighty-wiki.win/index.php/If_I_Cancel_ChatGPT_Plus_During_the_Trial,_Do_I_Keep_Access_Until_the_End_Date%3F

ChatGPT offers a permanent Free plan with basic features for everyone. Occasionally, targeted users get a Plus trial, which may require a payment method and auto-renews when it ends