GPT-6.1 Terra: OpenAI Halves the Price of Its Computer-Use Model
OpenAI's new mid-tier model costs $1 per million input tokens and is built to fill forms, draft documents and work through apps. Who can use it, what it costs, and how it compares.
GPT-6.1 Terra: OpenAI Halves the Price of Its Computer-Use Model
OpenAI released GPT-6.1 Terra on 26 October 2026, a model built for computer use, visual reasoning and writing, at $1 per million input tokens and $5 per million output. That is half the price of GPT-5.6 Terra, the model it replaces. In ChatGPT it lives in ChatGPT Work and Codex for paid plans, not in regular chat, and in the API as gpt-6.1-terra.
What it is for
OpenAI pitches Terra at everyday workday tasks: drafting proposals, filling in forms and moving through apps on a computer. It sits below GPT-6.1 Sol in OpenAI's range. It supports reasoning effort from none up to max, with medium as the default.
Price and where you find it
| Detail | |
|---|---|
| API price | $1 / 1M input, $5 / 1M output, 50% below GPT-5.6 Terra and GPT-6.1 Sol |
| API model ID | gpt-6.1-terra |
| ChatGPT | ChatGPT Work and Codex, not regular chat |
OpenAI's results, and how to read them
On Terminal-Bench 4.0 at maximum effort, OpenAI says Terra solves 50.3% of tasks, up from 21.5% for GPT-5.6 Terra. Its error rate on OpenAI's internal error-inducing prompts at low effort fell from 53.6% to 16.7%. OpenAI also rates it at the Critical level for cybersecurity in its Preparedness Framework, which is why some uses are controlled.
For context, Claude Opus 5.5 scores 66.4% and Kimi K3.1 Pro 65.7% on the same Terminal-Bench 4.0, so Terra is not the strongest coder around. Its case is price. Early reactions on OpenAI's developer forum call it useful rather than a breakthrough, which sounds right to me.
Who should use it
Teams automating repetitive browser or office work, like data entry, form filling and report drafting, where cost per task decides the design. Not the hardest coding or research jobs: GPT-6 Astra, Claude Opus 5.5 or Sonnet 5.5 are stronger there. Indian teams pay in dollars, so run your real task volume through the cost calculator first.
Sources
Frequently asked questions
How much does GPT-6.1 Terra cost?
$1 per million input tokens and $5 per million output tokens on the OpenAI API — half the price of GPT-5.6 Terra.
Can I use GPT-6.1 Terra in ChatGPT?
Yes, in ChatGPT Work and Codex on paid plans, but not in regular ChatGPT chat. Developers can call it in the API as gpt-6.1-terra.
Is GPT-6.1 Terra good at coding?
OpenAI reports 50.3% on Terminal-Bench 4.0 at maximum effort, a big jump from GPT-5.6 Terra's 21.5%, but below Claude Opus 5.5 (66.4%). It is built for cheap computer use more than hard coding.
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AICreatorHub Team
The AICreatorHub editorial team is a group of hands-on AI practitioners, writers and developers based in India. We test AI tools and models ourselves, track official releases from OpenAI, Anthropic, Google, Meta and xAI, and translate them into simple, India-first guides in English and Hindi. Every article is written for real Indian use cases — pricing in rupees, free-tier tips and practical, tested steps — so you get accurate, up-to-date and genuinely useful AI information.