As of July 2026, ChatGPT offers a Free plan using GPT-5.6 Terra, which is great...

https://romeo-wiki.win/index.php/What_is_the_Cheapest_Plan_That_Gets_GPT-5.6_Sol%3F

As of July 2026, ChatGPT offers a Free plan using GPT-5.6 Terra, which is great for casual use. The Go plan costs $8 per month and also runs GPT-5.6 Terra, giving you faster responses and priority access