ChatGPT offers a permanent Free plan for all users. Occasionally, targeted...

https://nova-wiki.win/index.php/What_Is_Pro_Preview_in_Suprmind_and_How_Do_I_Unlock_It%3F

ChatGPT offers a permanent Free plan for all users. Occasionally, targeted promotions provide a free trial of the Plus plan, which may require a payment card and auto-renews after the trial ends