Model and API retirements

64 within 30 days · 558 firm dates ahead

Claude Opus 4.5 retirement date and replacement

GitHub Copilot · Model · retired Sep 1, 2026 (retired)Unverified

Vendor page

Dates

Checked Nov 9, 2026 on GitHub's page
RetiredSep 1, 2026 (retired)
ReplacementLatest Claude Opus model
What it isClaude Opus 4.5 stopped answering on GitHub Copilot.
Sourcedocs.github.com/en/copilot/reference/ai-models/supported-models

Changes

ReplacementUnverified

GitHub changed the replacement for Claude Opus 4.5 from Claude Opus 5 to Latest Claude Opus model.

Oct 5Source
GitHub
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60 days agoSep 10
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38 days agoOct 2
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38 days agoOct 2
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38 days agoOct 2