OpenAI releases GPT-6.1 Terra
OpenAI released GPT-6.1 Terra for the Responses API and Chat Completions API.
- Context
- 1.05M
- Max output
- 128K
- Input price
- $1.00
- Knowledge cutoff
- Jun 2026
Source: OpenAI API changelog, checked Oct 26, 2026. Summarized from the provider’s announcement.