OpenAI Releases GPT-6.1 Terra, Agent Tasks 3x Faster and 50% Cheaper

OpenAI has released GPT-6.1 Terra, focused on computer operation, visual reasoning, coding, and everyday office work. API pricing is $1 per million input tokens and $5 per million output tokens, 50% lower than GPT-5.6 Terra and GPT-6.1 Sol. On Agents' Last Exam, at medium reasoning effort it scores 15 percentage points higher than GPT-5.6 Terra at about one-third the cost, and completes tasks more than 3x faster than GPT-6 Astra and GPT-6.1 Sol. Internal benchmarks show the error rate at low reasoning effort dropped from 53.6% to 16.7%, and it scores 50.3% on Terminal-Bench 4.0 at maximum reasoning effort, compared with 21.5% for GPT-5.6 Terra. The model is now available to Plus, Pro, Enterprise, and Edu users in ChatGPT Work and Codex, with the API model name gpt-6.1-terra.