ChatGPT offers a permanent Free plan available to all users. Occasionally,...

https://wiki-planet.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. Occasionally, targeted users may get a Plus trial, which sometimes requires a payment card and auto-renews when the trial ends