GPT-6.1 Terra continues to push the frontier of cost and intelligence across our model families.
GPT-6.1 Terra continues to push the frontier of cost and intelligence across our model families.
Compared with GPT‑5.6 Terra, this is a significant improvement, with standard API pricing reduced by 50%.
In ChatGPT Work and Codex, when using GPT‑6.1 Terra, your usage allowance lasts longer than with GPT‑5.6 Terra, and far longer than with GPT‑6.1 Sol or GPT‑6 Astra.
For deep research or complex coding, choose GPT-6.1 Sol or GPT-6 Astra.