Introducing GPT-6.1 Terra
OpenAI, Monday, October 26th, 2026
Introducing GPT-6.1 Terra, a fast, efficient model that combines detailed visual reasoning and precise computer use alongside clearer, more natural writing.
GPT-6.1 Terra is a significant step up from GPT-5.6 Terra, excelling at the communication and computer-based tasks that fill the workday, from drafting proposals and interpreting technical drawings to filling out forms and editing videos.
OpenAI says Terra advances the cost-intelligence frontier across its model families, offering a new balance of speed, capability, and cost.
Its standard API prices are 50% lower than those of GPT-5.6 Terra and GPT-6.1 Sol, making it practical for developers to automate high-volume work, like reading incoming invoices and entering their details into accounting software.
In ChatGPT Work and Codex, the same usage allowance covers more tasks with GPT-6.1 Terra than with GPT-5.6 Terra and substantially more than with GPT-6.1 Sol or GPT-6 Astra.