Business owners can use GPT-6.1 Terra to automate high-volume work that requires detailed visual understanding, precise computer use and clear writing at a lower standard API price. The model is available to Plus, Pro, Enterprise and Edu users in ChatGPT Work and Codex, and to developers through the OpenAI API as gpt-6.1-terra.
OpenAI describes the new model as a significant step up from GPT-5.6 Terra, with improvements in factuality, coding, visual reasoning and safety. Its standard API prices are 50% lower than GPT-5.6 Terra and GPT-6.1 Sol, making it more practical for recurring workflows such as reading incoming invoices and entering their details into accounting software.
What is GPT-6.1 Terra designed to handle?
GPT-6.1 Terra combines visual reasoning, computer use and more natural writing for communication and computer-based tasks. OpenAI cites drafting proposals, interpreting technical drawings, filling out forms and editing videos among its intended uses.
Its capabilities are relevant to businesses that want AI to move beyond producing text. A model that understands a technical drawing or operates desktop applications can support more complete processes, provided the underlying business systems and workflows are ready for automated use.
How does GPT-6.1 Terra perform on visual and computer tasks?
OpenAI evaluated GPT-6.1 Terra on Agents’ Last Exam, a benchmark of professional tasks that includes converting architectural drawings into 3D models and reviewing animated films shot by shot to create time-coded restoration logs.
- At medium reasoning effort, GPT-6.1 Terra scored 15 percentage points higher than GPT-5.6 Terra at about one-third the cost.
- It performed on par with GPT-6 Astra at one-tenth its price per token.
- At maximum effort, it was over three times as token-efficient as Claude Opus 5.5 and cost one-fourth as much per token.
- The resulting cost per task was about nine times lower than Claude Opus 5.5.
- It completed tasks more than three times faster than GPT-6 Astra and GPT-6.1 Sol.
On MMMU-Pro, a visual reasoning benchmark, GPT-6.1 Terra outperformed GPT-5.6 Terra at every reasoning setting. It nearly matched GPT-6 Astra and GPT-6.1 Sol at a lower cost. On OSWorld 2.1, which tests AI agents using desktop applications for multistep work, the model surpassed GPT-5.6 Terra’s best score at medium reasoning effort and a fraction of the cost per task.
What improvements did OpenAI report in factuality and coding?
OpenAI reported a substantial reduction in errors on its internal benchmark of prompts designed to induce mistakes. At low reasoning effort, the error rate fell from 53.6% with GPT-5.6 Terra to 16.7% with GPT-6.1 Terra, a decline of nearly 37 percentage points.
At maximum reasoning effort, the error rate fell by 18 percentage points to 4.3%, nearly matching GPT-6 Astra and GPT-6.1 Sol. According to OpenAI’s evaluations, GPT-6.1 Terra was also more likely than GPT-5.6 Terra to stay within scope, disclose limitations and identify potential blockers.
For software engineering, Terminal-Bench 4.0 tests coding agents solving problems from the command line, such as fixing a webpage whose layout changes while loading. At maximum reasoning effort, GPT-6.1 Terra solved 50.3% of tasks, more than twice GPT-5.6 Terra’s published score of 21.5%. OpenAI said GPT-6.1 Sol and GPT-6 Astra remained better choices for the most complex coding tasks.
On Terminal-Bench-Science 0.1, which measures agents using code for scientific research tasks, GPT-6.1 Terra surpassed GPT-6.1 Sol at maximum reasoning and lower cost. It came within five points of Claude Opus 5.5 at less than one-fifth of the estimated cost.
What safety protections accompany GPT-6.1 Terra?
GPT-6.1 Terra meets the Critical threshold for cybersecurity under OpenAI’s Preparedness Framework and retains protections developed for GPT-6 Astra. OpenAI said the model also carried forward alignment improvements from the GPT-6 series.
Its prompt-injection tests showed strong resistance to malicious instructions intended to divert the model from the user’s assigned task. The safety information is available in the model system card.
What are the pricing and availability details?
GPT-6.1 Terra is available to all Plus, Pro, Enterprise and Edu users in ChatGPT Work and Codex. Developers can access it through the OpenAI API as gpt-6.1-terra.
- Input tokens: $1 per million tokens.
- Cached input tokens: $0.05 per million tokens.
- Output tokens: $5 per million tokens.
These standard API prices are 50% lower than those of GPT-5.6 Terra and GPT-6.1 Sol. Within the same plan allowance, OpenAI said GPT-6.1 Terra covers more tasks than GPT-5.6 Terra and substantially more than GPT-6.1 Sol or GPT-6 Astra.
What to do now
- Identify a recurring business process that depends on documents, forms, invoices, technical drawings or desktop applications, and measure its current time and operating cost.
- Compare the workflow with GPT-6.1 Terra’s documented capabilities and current API price, using the standard input, cached input and output token rates to estimate the cost per task.
- Start with a bounded task that has clear inputs, required outputs and a way for staff to check the result, especially when the work involves computer actions or visual materials.
- Record task completion time, error rates and review requirements, then compare them with the current process before expanding automation.
- For a broader online visibility review, BizScoreAI shows how a business listing appears to AI search and tracks its AI visibility across a national directory of business profiles.
FAQ
What is GPT-6.1 Terra?
GPT-6.1 Terra is an OpenAI model for detailed visual reasoning, precise computer use and clear writing. It can support tasks such as drafting proposals, interpreting technical drawings, filling out forms and editing videos.
How much does GPT-6.1 Terra cost through the API?
Standard API pricing is $1 per million input tokens, $0.05 per million cached input tokens and $5 per million output tokens.
Where is GPT-6.1 Terra available?
GPT-6.1 Terra is available to Plus, Pro, Enterprise and Edu users in ChatGPT Work and Codex. Developers can access it through the OpenAI API as gpt-6.1-terra.
Related coverage
Try the AI visibility scan
BizScoreAI scores how visible a business is to AI search and shows what its listing looks like to the engines people ask. Open the AI visibility scan.
Sources
See our editorial disclaimer for how our articles are produced.
Run a free scan to see your AI Visibility Score, SEO rating, and local citation accuracy.