GPT-6.1 Terra is now generally available in GitHub Copilot
GitHub announced that GPT-6.1 Terra, which it describes as OpenAI's newest model, is now generally available in GitHub Copilot. The model is designed for everyday agentic coding and terminal work at a lower cost than GPT-6.1 Sol.
GPT-6.1 Terra, OpenAI's newest model, is now generally available in GitHub Copilot, according to a GitHub changelog entry published on October 26, 2026.
What GitHub says
GitHub describes GPT-6.1 Terra as designed for everyday agentic coding and terminal work. It positions the model as a lower-cost option than GPT-6.1 Sol.
The announcement appeared on The GitHub Blog's changelog under the title "GPT-6.1 Terra in GitHub Copilot."
Key details
- Model: GPT-6.1 Terra (OpenAI)
- Availability: generally available in GitHub Copilot
- Intended use: everyday agentic coding and terminal work
- Cost positioning: lower than GPT-6.1 Sol, per GitHub
What this means
GitHub's description places GPT-6.1 Terra as the lower-cost model for routine agentic coding and terminal tasks, with GPT-6.1 Sol as the higher-cost model in the same family. Because the model is generally available rather than in preview, Copilot users can use it for that kind of work now.
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