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

https://www.lima-bookmarkings.win/chatgpt-offers-a-free-plan-that-s-always-available-to-all-users-no-trial

ChatGPT offers a permanent Free plan available to everyone with basic features. Occasionally, OpenAI runs targeted free trials for the Plus plan, which may require a payment card and auto-renew unless canceled