# GPT-6.1 Terra: API availability

GPT-6.1 Terra: API availability. First seen 26 Oct 2026. The context window is 1,050,000 tokens. The maximum output is 128,000 tokens. Pricing is $1.00 per million input tokens and $5.00 per million output tokens. 14 evidence links.

- Kind: API availability
- Developer: OpenAI
- Confidence: Confirmed
- First seen: 2026-10-26T17:51:54.179Z
- API availability: 2026-10-26T00:00:00.000Z
- Model: [GPT-6.1 Terra](https://alexgetman.com/models/openai/gpt-6-1-terra/)
- Canonical: https://alexgetman.com/signals/2026/10/26/gpt-6-1-terra-max/

## Evidence links

- [OpenAI API](https://platform.openai.com/docs/models)
- [OpenAI · API changelog](https://developers.openai.com/api/docs/changelog)
- [OpenAI · Codex changelog](https://developers.openai.com/codex/changelog/#codex-2026-10-26-gpt-61-terra)
- [OpenAI · model index](https://developers.openai.com/api/docs/models/gpt-6.1-terra)
- [OpenRouter](https://openrouter.ai/openai/gpt-6.1-terra)
- [Artificial Analysis · benchmarks](https://artificialanalysis.ai/models)
- [Vercel AI Gateway](https://vercel.com/ai-gateway)
- [OpenRouter](https://openrouter.ai/openai/gpt-6.1-terra:batch)
- [OpenAI · sitemap](https://openai.com/index/introducing-gpt-6-1-terra)
- [OpenCode · discovery](https://opencode.ai/data/openai/gpt-6-1-terra)
- [models.dev · catalogue](https://models.dev/#gpt-6.1-terra)
- [OpenAI · ChatGPT release notes](https://help.openai.com/en/articles/6825453-chatgpt-release-notes)
- [Hacker News · front page](https://openai.com/index/introducing-gpt-6-1-terra/)
- [Codex · model list](https://github.com/openai/codex/blob/main/codex-rs/models-manager/models.json)