News
Upcoming deprecation of selected GitHub Copilot models in December
GitHub Changelog · By Allison ·
The Brief
- GitHub will deprecate selected GitHub Copilot models on December 14, 2026.
- The deprecation applies across all Copilot experiences, including Chat, inline edits, ask and agent modes, and code completions.
- Claude Fable 5 is listed for deprecation, with Claude Fable 5.2 as the suggested alternative.
Why it matters
Developers who select the affected models in Copilot will need to switch to the suggested alternatives once the deprecation takes effect.
Who’s affected
- Developers using the affected GitHub Copilot models
What to do
- Switch from Claude Fable 5 to Claude Fable 5.2 before December 14, 2026
- Claude Fable 5
- Claude Fable 5.2
- #github-copilot
- #deprecation
- #ai-models
- #claude
- #developer-tools
We will deprecate the following models across all GitHub Copilot experiences (including Copilot Chat, inline edits, ask and agent modes, and code completions) on December 14, 2026: Model Deprecation date Suggested alternative Claude Fable 5 2026-12-14 Claude Fable 5.2 Claude…
Timeline
GitHub announces upcoming deprecation of selected Copilot models
Archive: 2026 - GitHub Changelog
Upcoming deprecation of selected GitHub Copilot models in December
Selected models deprecated across all GitHub Copilot experiences