As of July 2026, ChatGPT pricing starts at $8 for the Go plan and $20 for Plus....

https://high-wiki.win/index.php/What_is_GPT-5.5_Pro_API_Pricing_and_Who_Is_It_For%3F

As of July 2026, ChatGPT pricing starts at $8 for the Go plan and $20 for Plus. Go users in the US will see ads during chats, which might be distracting