GitHub Copilot model: Claude Opus 4.6 (fast mode) (preview)
GitHub retired the Claude Opus 4.6 (fast mode) (preview) model in Copilot on 29 June 2026; it suggests Latest Claude Opus model in fast mode instead.
Retirement1 version
Facts
- Microsoft id
claude-opus-4.6-fast-mode-preview-- Products
- GitHub Copilot
- Model
- Claude Opus 4.6 (fast mode) (preview)
- Release status
- Retired
- Retired
- 29 June 2026
- Suggested alternative
- Latest Claude Opus model in fast mode
- Status pages
- GitHub Copilot status
- First captured by us
- (from our first import of this list)
- Microsoft last modified
- –
- Source
- GitHub Copilot models · open the original at Microsoft
Microsoft says
Microsoft published no description with this item.
What Microsoft changed
One version so far. If Microsoft edits it, each change shows here with what was removed and added.
First version we captured ·
The text as we first saw it
Seen by us · Microsoft's page