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GPT-5.1-Codex-Mini retirement date and replacement

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

Vendor page

Dates

Checked Sep 25, 2026 on GitHub's page
RetiredApr 1, 2026 (retired)
ReplacementGPT-5.3-Codex
NoticeRetirement date; Model retirement history
Sourcedocs.github.com/en/copilot/reference/ai-models/supported-models

Changes

DateChange
Sep 25Announced2026-04-01UnverifiedRetirement date; Model retirement historySource
GitHub
  • Claude Opus 4.1UnverifiedGitHub CopilotModelClaude Opus 57mo agoFeb 17
  • GPT-5UnverifiedGitHub CopilotModelGPT-5.57mo agoFeb 17
  • GPT-5-CodexUnverifiedGitHub CopilotModelGPT-5.3-Codex7mo agoFeb 17
  • Gemini 3 ProUnverifiedGitHub CopilotModelGemini 3.8 Flash6mo agoMar 26
  • GPT-5.1-CodexUnverifiedGitHub CopilotModelGPT-5.3-Codex6mo agoApr 1
  • GPT-5.1-Codex-MaxUnverifiedGitHub CopilotModelGPT-5.3-Codex6mo agoApr 1
  • GPT-5.1UnverifiedGitHub CopilotModelGPT-5.3-Codex5mo agoApr 15
  • Claude SonnetUnverifiedGitHub CopilotModelClaude Sonnet 4.65mo agoMay 1
  • Grok Code FastUnverifiedGitHub CopilotModelGPT-5 mini4mo agoMay 15

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