Model and API retirements

Within 30 days64Firm dates ahead558

64 within 30 days · 558 firm dates ahead

Claude Opus 4.1 retirement date and replacement

GitHub Copilot · Model · retired Feb 17, 2026 (retired)Unverified

Vendor page

Dates

Checked Nov 9, 2026 on GitHub's page
RetiredFeb 17, 2026 (retired)
ReplacementLatest Claude Opus model
What it isClaude Opus 4.1 stopped answering on GitHub Copilot.
Sourcedocs.github.com/en/copilot/reference/ai-models/supported-models

Changes

ReplacementUnverified

GitHub changed the replacement for Claude Opus 4.1 from Claude Opus 5 to Latest Claude Opus model.

Oct 5Source

Around the same time on GitHub Copilot

GitHub
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GPT-5-Codex

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retiredFeb 17
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Gemini 3 Pro

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retiredMar 26
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GPT-5.1-Codex

Stopped answering on GitHub Copilot.

retiredApr 1
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GPT-5.1-Codex-Max

Stopped answering on GitHub Copilot.

retiredApr 1
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GPT-5.1-Codex-Mini

Stopped answering on GitHub Copilot.

retiredApr 1