ChatGPT offers a permanent Free plan with basic access available to everyone....

https://trentonsexcellentthoughtss.evergrovio.com/posts/where-exactly-is-settings-subscription-on-chatgpt.com

ChatGPT offers a permanent Free plan with basic access available to everyone. Occasionally, targeted users may get a Plus free trial, which sometimes requires a payment card and auto-renews after the trial ends