ChatGPT offers a free plan that anyone can use indefinitely with basic...

https://touch-wiki.win/index.php/Does_ChatGPT_Free_Trial_Availability_Depend_on_Your_Country%3F

ChatGPT offers a free plan that anyone can use indefinitely with basic features. Occasionally, targeted users get a free trial of ChatGPT Plus, which may require a payment card and auto-renews when the trial ends