OpenAI releases GPT-6.1 Terra
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OpenAI releases GPT-6.1 Terra — a fast model aimed at both computer use, where it looks at the screen and operates apps, and writing, with standard API pricing set 50% below GPT-5.6 Terra and GPT-6.1 Sol at $1 per 1 million input tokens, $0.05 for cached input and $5 for output. It opened the same day in ChatGPT Work and Codex for Plus, Pro, Enterprise and Edu users, and in the API as gpt-6.1-terra
Why it matters
Company-reported: on Agents' Last Exam, a professional-work benchmark, the medium reasoning setting scored 15 percentage points higher than GPT-5.6 Terra at about 1/3 the cost, and matched GPT-6 Astra at 1/10 the price per token. It put Terminal-Bench 4.0 at 50.3% on the maximum setting, more than double GPT-5.6 Terra's published 21.5%, and wrote that on an internal benchmark built to induce errors the error rate fell from 53.6% to 16.7% on the low setting and to 4.3% on the maximum setting. At the same time OpenAI said of its own accord that the model reached the critical threshold for cybersecurity under its preparedness evaluation framework, which shows that a model with a lower price is not thereby a model in a lower risk class
Source — Primary sources first; secondary reports are labelled “Press”
Officialopenai.comhttps://openai.com/index/introducing-gpt-6-1-terra/Added in Week 44, 2026 · See that week
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