As of July 2026, ChatGPT offers the Go plan at $8 a month and the Plus plan at...

https://romeo-wiki.win/index.php/Why_is_GPT-4.1_Nano_50x_Cheaper_than_GPT-5.5%3F

As of July 2026, ChatGPT offers the Go plan at $8 a month and the Plus plan at $20. The Go plan includes ads if you're in the US, which can be a surprise