ChatGPT offers a permanent Free plan anyone can use without a time limit....

https://sticky-wiki.win/index.php/Does_ChatGPT_Have_a_Referral_Link_Trial_I_Can_Ask_a_Friend_For%3F

ChatGPT offers a permanent Free plan anyone can use without a time limit. Occasionally, OpenAI runs targeted free trial promotions for the Plus plan, which may require a credit card and automatically renew after the trial ends