Grok Code Fast 1 Deprecated in GitHub Copilot – Migrate by May 15
Grok Code Fast 1 is being deprecated across GitHub Copilot on May 15, 2026. Migrate to GPT-5 mini or Claude Haiku 4.5 before the deadline. Enterprise admins need to enable alternatives in model policies.
TL;DR
- Grok Code Fast 1 sunsets May 15, 2026 across all Copilot experiences
- Switch to GPT-5 mini or Claude Haiku 4.5 before the deadline
- Enterprise admins must enable alternative models in Copilot settings
Deprecated
- Grok Code Fast 1 — removed from Copilot Chat, inline edits, ask mode, agent mode, and code completions due to upstream provider deprecation
What You Need to Do
- Update workflows and integrations to use GPT-5 mini or Claude Haiku 4.5 before May 15
- Enterprise admins: Enable alternative models in Copilot settings → model policies. Verify availability in VS Code and github.com model selector
- No action needed to remove deprecated models after the date
Update GitHub Copilot to the latest version to access supported models. Enterprise customers with concerns should contact their account manager.
Source: GitHub Changelog
