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GPT-6.1 Terra: Built for High-Volume Professional Workflows
GPT-6.1 Terra is a fast, highly efficient model introduced by OpenAI, built specifically to tackle high-volume professional workloads. Combining speed with clear, natural writing, it easily streamlines daily communication and routine workplace deliverables.
Bridging the gap between visual understanding and direct action, GPT-6.1 Terra features advanced visual reasoning and precise computer-use capabilities. This allows it to interpret complex technical drawings, fill out forms, and seamlessly navigate desktop applications to complete multi-step tasks.
GPT-6.1 Terra: Scaling Fast, Capable Computer Use for Everyday Work
From Visual Reasoning to Desktop Action
Excelling at detailed visual reasoning and precise desktop computer use, GPT-6.1 Terra effortlessly handles complex, multi-step workflows. In technical and engineering tasks, you can provide blueprints to have it construct 3D models. For daily administration, it can visually review PDF documents and automatically populate software forms across your screen.
Factual Rigor for Critical Deliverables
GPT-6.1 Terra eliminates guesswork from critical workplace documents. On the factual error rate on difficult prompts benchmark at maximum reasoning, its accuracy matches flagship models like GPT-6 Astra and GPT-6.1 Sol.
You can reliably draft executive proposals, audit multi-page contract terms, and prepare formal client presentations without second-guessing details. It produces clear, ready-to-send business communications—saving you the hours typically spent manually verifying figures and cross-checking citations.

Clear Writing for Usable First Drafts
Built for natural, fluent prose, GPT-6.1 Terra transforms reference notes into usable copy on the first pass. From announcements and client emails to product descriptions, it effortlessly adapts tone, length, and structure across prompts—delivering high information density without unnecessary fluff.
More Than Double the Coding Performance
GPT-6.1 Terra brings a substantial upgrade to software engineering. On Terminal-Bench 4.0, it achieves a 50.3% task completion rate at maximum reasoning—more than double GPT-5.6 Terra's 21.5%. Use it to effortlessly debug and resolve issues, like fixing broken webpage layouts on load.

Why Experience GPT-6.1 Terra on HIX AI
Ready to experience GPT-6.1 Terra in action? Try it today on HIX.AI and elevate your everyday workflows with advanced visual reasoning, rapid coding, and reliable business writing.
Side-by-Side Multi-Model Comparison: HIX AI chat agent lets you run the same task across industry-leading models—including ChatGPT, Gemini 4 Argon, and Claude Opus 5.5—all in one place. Compare up to four models simultaneously to evaluate different approaches and instantly select the optimal solution.
Targeted Data Sources for Precise Answers: Tailor your research by selecting the ideal data source for any task with HIX AI chat agent. Tap into the live Web for instant real-time updates, scan News for coverage from major outlets, or query Academic databases to retrieve credible, evidence-backed facts.
Unlimited Access for High-Volume Workflows: Paid subscribers on HIX AI enjoy unlimited model access to fully unleash GPT-6.1 Terra’s speed across heavy daily workloads. Power through routine tasks and bulk deliverables all day long without the friction of tracking rate limits or rationing quotas.
GPT-6.1 Terra with Other Advanced Models
| Feature | GPT-6.1 Terra | GPT-6.1 Sol | Gemini 4 Argon | Claude Opus 5.5 |
| Release Date | October 26, 2026 | September 29, 2026 | October 13, 2026 | September 22, 2026 |
| Developer | OpenAI | OpenAI | Anthropic | |
| Input Price (per 1M tokens) | $1.00 | $2.00 | $2.00 (introductory) / $4.00 | $4.00 |
| Output Price (per 1M tokens) | $5.00 | $10.00 | $10.00 (introductory) / $20.00 | $20 |
| Context Window | 1.05M | 1.05M | 1M | 1M |
| Max Output | 128K | 128K | 1M | 128K |
| Core Strength | High-volume desktop action, fast computer use, natural writing, cost efficiency | Frontier reasoning, complex software architecture, difficult scientific reasoning | Native multimodal reasoning (audio/video), long-horizon agent workflows, cybersecurity | Deep nuanced writing, complex coding, large-codebase refactoring, rigorous instruction following |

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Questions and Answers
What is GPT-6.1 Terra, and what is it best used for?
When should I choose GPT-6.1 Terra over GPT-6.1 Sol?
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What inputs and outputs does GPT-6.1 Terra support?
Can I edit GPT-6.1 Terra’s outputs directly inside HIX AI?
