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

https://johnathankvdj950.wpsuo.com/can-i-use-a-chatgpt-trial-more-than-once-on-the-same-account

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