Key facts
- GPT-6.1 Terra is available to Plus, Pro, Enterprise, and Edu users in ChatGPT Work and Codex.
- Standard API prices for GPT-6.1 Terra are 50% lower than GPT-5.6 Terra.
- Internal tests show GPT-6.1 Terra's factual error rate at low reasoning effort fell from 53.6% to 16.7%.
- On Terminal-Bench 4.0, GPT-6.1 Terra solved 50.3% of tasks at maximum effort, compared to 21.5% for GPT-5.6 Terra.
OpenAI has launched GPT-6.1 Terra, a new AI model designed for everyday tasks such as reading screens, clicking through apps, and drafting replies. The company announced on Monday that the model is available to developers and users of ChatGPT Work and Codex, with standard API prices cut by 50% compared to its predecessor, GPT-5.6 Terra. OpenAI stated that GPT-6.1 Terra represents a significant improvement over GPT-5.6 Terra, offering faster task completion and enhanced accuracy. Internal testing indicated a substantial reduction in factual errors and a higher success rate on coding tasks.