GPT-6.1 Terra arrives in GitHub Copilot, ChatGPT and Codex
OpenAI updated ChatGPT and Codex with the new GPT-6.1 Terra model on 26 October. The model is also available in GitHub Copilot.
Who is affected and how
- senior developer
- The model can be selected in Copilot; compare it with the previous model on your own codebase.
- tech lead
- Measure the effect of the model change on the team's own tasks before making it the default.
Sources
- GPT-6.1 Terra in GitHub Copilotthe github blog · Oct 26, 2026
- GPT-6.1 Terra in GitHub Copilot - GitHub Changeloggithub.blog · Oct 26, 2026
- GitHub Copilot Adds AI-Assisted Permission Approvalsvisual studio magazine · Oct 27, 2026
- GitHub Makes Copilot Fusion Generally Available at Universe 2026unite.ai · Oct 28, 2026
- GitHub Copilot Fusion Routes AI Models for Codingtechbooky.com · Oct 28, 2026
- GitHub debuts Copilot Fusion, a new model selection &…claudeworld.news · Oct 28, 2026
- GitHub Announces Copilot Fusion Is Now Generally Available | PANews Englishpanews.io · Oct 28, 2026
- GitHub Copilot Fusion комбинирует модели, чтобы приблизиться к уровню Opus 5.5 в программировании при вдвое меньшей стоимости одной задачи — Venturebeat.ruventurebeat.ru · Oct 28, 2026
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