Model and API retirements

Within 30 days64Firm dates ahead558

64 within 30 days · 558 firm dates ahead

GPT-5-Codex 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 GPT Codex model
What it isGPT-5-Codex stopped answering on GitHub Copilot.
Sourcedocs.github.com/en/copilot/reference/ai-models/supported-models

Changes

ReplacementUnverified

GitHub changed the replacement for GPT-5-Codex from GPT-5.3-Codex to Latest GPT Codex model.

Oct 5Source

Around the same time on GitHub Copilot

GitHub
GitHub CopilotModelUnverified

Claude Opus 4.1

Stopped answering on GitHub Copilot.

retiredFeb 17
GitHub CopilotModelUnverified

GPT-5

Stopped answering on GitHub Copilot.

retiredFeb 17
GitHub CopilotModelUnverified

Gemini 3 Pro

Stopped answering on GitHub Copilot.

retiredMar 26
GitHub CopilotModelUnverified

GPT-5.1-Codex

Stopped answering on GitHub Copilot.

retiredApr 1
GitHub CopilotModelUnverified

GPT-5.1-Codex-Max

Stopped answering on GitHub Copilot.

retiredApr 1
GitHub CopilotModelUnverified

GPT-5.1-Codex-Mini

Stopped answering on GitHub Copilot.

retiredApr 1