It started to get deployed: https://chatgpt.com/pricing/ it's called "ChatGPT Go"

    > This plan may include ads. Learn more 

    > When will ads be available in ChatGPT?
    We’re beginning in the US on February 9, 2026

    > Starting in February, if ads personalization is turned on, ads will be personalized based on your chats and any context ChatGPT uses to respond to you. If memory is on, ChatGPT may save and use memories and reference recent chats when selecting an ad. 

You pay 8 USD / month and have higher limits and ads