GPT-6.1 Terra is GA in GitHub Copilot: what engineers should know
This story is from 2026-10-27. It is preserved in the archive; the latest stories are on the live feed.
GitHub has made GPT-6.1 Terra, a new OpenAI model, generally available in Copilot. The announcement is short, but it points to a trend worth noticing: model choice inside coding assistants is becoming a cost-and-fit decision rather than a "pick the biggest one" decision. Here is what GitHub has sai…
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- 2026-10-27 20:40 · DEV Community — AI
GPT-6.1 Terra is GA in GitHub Copilot: what engineers should know