Tweet by OpenAI
July 30, 2026
We are committed to pushing the model frontier across cost efficiency, capability, and speed. Starting today, we are reducing prices for GPT-5.6 Luna by 80% and GPT-5.6 Terra by 20% , and offering a faster option for GPT-5.6 Sol in the API. Luna and Terra’s lower prices are reflected in how usage is counted in Codex and ChatGPT Work, so your usage goes further.
- Author
- OpenAI
- Date
- July 30, 2026
- Canonical URL
- /tweets/openai-2082878156483219672-1122e4