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

https://romeo-wiki.win/index.php/Is_There_a_ChatGPT_Business_Free_Trial_Button,_or_Do_I_Have_to_Talk_to_Sales%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