ChatGPT offers a free plan that’s always available with no time limits....

https://garrettsinsightfulchat.wordcanopy.com/posts/is-there-a-real-chatgpt-plus-promo-code-box-anywhere

ChatGPT offers a free plan that’s always available with no time limits. Occasionally, targeted users may get a free trial of the Plus plan, which often requires a card and auto-renews when the trial ends