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

https://www.apu-bookmarks.win/chatgpt-offers-a-permanent-free-plan-with-basic-features-available-to-all

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