ChatGPT offers a permanent Free plan with basic features anyone can use....

https://wiki-byte.win/index.php/Does_a_ChatGPT_Trial_Delete_Anything_If_I_Don%E2%80%99t_Upgrade_Afterward%3F

ChatGPT offers a permanent Free plan with basic features anyone can use. Occasionally, there are targeted Plus trials that provide extra benefits; these trials may require a payment card and auto-renew after the trial ends