In July 2026, ChatGPT offers four options. The Free and Go plans both use the...

https://wiki-triod.win/index.php/How_Does_Cached_Input_Pricing_Work_on_OpenAI_API%3F

In July 2026, ChatGPT offers four options. The Free and Go plans both use the GPT-5.6 Terra model, with Go costing $8 per month for faster access and priority access during busy times. Plus is $20 monthly, running on the more powerful GPT-6 Sol model