ChatGPT offers a permanent Free plan anyone can use with basic features....

https://zandersexcellentblog.quillnesty.com/posts/do-chatgpt-free-trials-require-a-credit-card-or-not

ChatGPT offers a permanent Free plan anyone can use with basic features. Occasionally, targeted users may get free trials of ChatGPT Plus, some requiring a payment card and auto-renewing unless canceled