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

https://star-wiki.win/index.php/ChatGPT_Plus_Free_Trial_vs_Free_Plan:_What%E2%80%99s_the_Difference%3F

ChatGPT offers a permanent Free plan anyone can use with basic features. Occasionally, targeted users may get free trials of ChatGPT Plus, some requiring a payment card and auto-renewing unless canceled