GPT-6.1 Terra Spotted in Microsoft Evaluation Update, Unconfirmed

ryanmerket · reddit · 2026-10-20

A Reddit user spotted "gpt-6.1-terra" listed as a judgemodel in a Microsoft evaluation config update, alongside "gpt-6.1-sol" and an executor set to copilot-sdk. It suggests OpenAI may be internally testing unreleased 6.1-series models, though nothing is confirmed yet.

Related event: GPT-6.1 Terra Surfaces in Microsoft Pull Request(3 posts)→

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