OpenAI's GPT-6.1 Terra Halves API Prices and Pushes the Cost-Per-Task Frontier
OpenAI released GPT-6.1 Terra on Monday, a mid-tier model priced at 1 dollar per million input tokens and 5 dollars per million output tokens, with cached input at 5 cents per million. OpenAI says that is 50 percent lower than both GPT-5.6 Terra, the model it replaces, and its larger GPT-6.1 Sol. The model is live in ChatGPT Work and Codex for Plus, Pro, Enterprise and Edu subscribers, and in the API as gpt-6.1-terra, with a context window of about 1.05 million tokens and up to 128,000 output tokens. It is not offered in ordinary ChatGPT conversations.