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GPT-6.1 Terra
Run GPT-6.1 Terra for exact visual reasoning, hands-on computer control, and quicker video edits — at half the API cost of GPT-5.6 Terra.
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What Makes GPT-6.1 Terra Stand Out
GPT-6.1 Terra is a lean, high-throughput model that links fine-grained visual reasoning to accurate desktop control, so video and app work wrap up in fewer steps.
- Sees the Frame, Then ActsGPT-6.1 Terra interprets blueprints and animation stills, then drives the software required to turn that reading into finished output.
- API Cost Cut in HalfList rates land 50% under GPT-5.6 Terra and GPT-6.1 Sol, which keeps invoice parsing and bulk data entry affordable at scale.
- More Tasks per PlanInside ChatGPT work and Codex, one allowance stretches across more jobs than GPT-5.6 Terra, and far more than GPT-6 Astra.
Running a Job Through GPT-6.1 Terra
Three short steps carry a loose brief all the way to a polished final clip.
Benchmark Scores for GPT-6.1 Terra
Desktop control, visual reasoning, factual reliability, and coding power, scored on Agents' Last Exam, MMMU-Pro, OSWorld 2.1, and Terminal-Bench.
Agents' Last Exam
At medium reasoning it lands 15 points above GPT-5.6 Terra on computer-use tasks while costing roughly one third as much.
MMMU-Pro
Across every reasoning setting it beats GPT-5.6 Terra and closes in on GPT-6 Astra and GPT-6.1 Sol at a fraction of the spend.
OSWorld 2.1
Even at medium reasoning it tops GPT-5.6 Terra's best result on multi-step desktop jobs like turning drawings into a 3D model.
Factual Accuracy
On tricky prompts, error rates drop from 53.6% to 16.7% at low reasoning and down to 4.3% at maximum reasoning.
Terminal-Bench 4.0
At maximum reasoning it clears 50.3% of command-line challenges — more than twice GPT-5.6 Terra's 21.5%.
Terminal-Bench-Science 0.1
It edges out GPT-6.1 Sol for less money and finishes within five points of Claude Opus 5.5 on code-heavy science work.
GPT-6.1 Terra: Questions Answered
Answers on cost, where to access the model, factual reliability, and how it handles multi-step desktop tasks.
What exactly is GPT-6.1 Terra?
GPT-6.1 Terra is a lean, quick model designed for fine-grained visual reasoning, accurate computer control, and noticeably cleaner, more natural prose.
What does the API charge?
List rates run $1 per million input tokens, $0.05 per million cached input tokens, and $5 per million output tokens — roughly half what GPT-5.6 Terra and GPT-6.1 Sol charge.
Which plans include GPT-6.1 Terra?
Plus, Pro, Enterprise, and Edu subscriptions carry it inside ChatGPT work and Codex, while developers reach it as gpt-6.1-terra through the OpenAI API.
How does it stack up against GPT-5.6 Terra?
It adds 15 points on Agents' Last Exam at medium reasoning, halves the API price, and completes work more than three times faster than GPT-6 Astra and GPT-6.1 Sol.
Are factual mistakes less frequent?
Yes — on internal prompts known to trip models, the error rate falls from 53.6% to 16.7% at low reasoning and to 4.3% at maximum reasoning.
What safety measures apply?
GPT-6.1 Terra stays within the 'severe' cybersecurity threshold of the Preparedness Framework, retains GPT-6 Astra's guardrails, and holds up against prompt injection.
Put GPT-6.1 Terra to Work Now
Run GPT-6.1 Terra inside ChatGPT work, Codex, or the API — just $1 per million input tokens and $5 per million output tokens.