GitHub Copilot Deprecates Grok Code Fast 1 Model Effective May 15
Key Takeaways
- ▸Grok Code Fast 1 will be deprecated across all GitHub Copilot experiences (Chat, inline edits, ask and agent modes, code completions) on May 15, 2026
- ▸Users and organizations must update their workflows and integrations to use supported models before the deprecation date
- ▸Enterprise administrators need to enable access to alternative models through Copilot settings and model policies
Summary
GitHub announced that it will deprecate Grok Code Fast 1 across all GitHub Copilot experiences on May 15, 2026. The deprecation is being accelerated due to model provider discontinuation and will affect Copilot Chat, inline edits, ask and agent modes, and code completions. Users and organizations need to update their workflows and integrations to use alternative supported models before the deadline.
GitHub Enterprise administrators are advised to enable access to alternative models through their model policies in Copilot settings. Once enabled, users will see the available models in the Copilot Chat model selector in VS Code and on github.com. The company emphasizes that no action is required to remove deprecated models after the sunset date, though enterprise customers with concerns are encouraged to contact their account managers.
- The accelerated deprecation timeline is due to the model provider discontinuing support
