OpenAI makes GPT-6.1 Terra available in Work and Codex
GPT-6.1 Terra is available in ChatGPT Work and Codex for Plus, Pro, Business, Enterprise, and Edu plans. It is not available in Chat, and Enterprise access depends on workspace availability and administrator controls.
- Context
- 1.05M
- Max output
- 128K
- Input price
- $1.00
- Knowledge cutoff
- Jun 2026
Source: ChatGPT and Codex changelog, checked Oct 26, 2026. Summarized from the provider’s announcement.