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

https://astro-wiki.win/index.php/ChatGPT_Pro_Free_Trial_Searches_Are_Everywhere_%E2%80%94_So_Why_Is_There_No_Standard_Offer%3F

ChatGPT offers a permanent Free plan anyone can use without time limits. Occasionally, OpenAI runs targeted free trials for the Plus plan, which may require a card and auto-renew unless canceled