ChatGPT offers a permanent Free plan for all users, while ChatGPT Plus trials...

https://oliviasinsightfulthoughts.novacrestiq.com/posts/does-chatgpt-have-a-free-trial-in-2026-or-is-it-just-the-free-plan

ChatGPT offers a permanent Free plan for all users, while ChatGPT Plus trials are occasional offers for selected accounts. Some Plus trials may require a payment method and will auto-renew when the trial ends