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

https://sierra-wiki.win/index.php/How_Many_Deep_Research_Runs_Are_in_Pro_$100_vs_Pro_$200%3F

As of July 2026, ChatGPT pricing starts at $8 for the Go plan and $20 for Plus. The Go plan includes ads in the US, which might catch some users off guard. Plus gets you faster responses and priority access during busy times