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

https://www.tumblr.com/skepticalverminzenith/825010819584655360/what-happens-if-my-chatgpt-trial-ends-and-i-dont

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