GPT-6.1 Terra, OpenAI’s fast, efficient model for visual reasoning, computer use, and natural writing, is now available through Serverless Inference, Inference Router (Public Preview), and model synthesis. OpenAI reports it performs on par with GPT-6 Astra on Agents’ Last Exam at one-tenth the price per token. It runs on the same DigitalOcean account, API, and invoice as the rest of the GPT-6 family.