ChatGPT offers a permanent Free plan available to all users with basic...

https://fast-wiki.win/index.php/Why_Does_ChatGPT_Plus_Cost_$20_a_Month_After_the_Trial_Ends%3F

ChatGPT offers a permanent Free plan available to all users with basic features. Occasionally, targeted users can access a Plus trial, which may require a payment method and auto-renews after the trial ends