In July 2026, ChatGPT offers a simple lineup: the Free and Go plans both use...

https://bizzmarkblog.com/does-chatgpt-go-get-gpt-5-6-sol-or-only-terra/

In July 2026, ChatGPT offers a simple lineup: the Free and Go plans both use the GPT-5.6 Terra model with Go costing $8 per month. If you need more power, Plus is $20 monthly and runs on the newer Sol model