Claude Opus 4.8 fast mode available in GitHub Copilot preview
GitHub Copilot is now previewing Claude Opus 4.8 in fast mode, offering substantially improved output speeds for interactive coding and agentic workflows. While priced higher than standard Opus 4.8, this fast mode is billed at provider list pricing and is available to Copilot Pro+, Max, Business, and Enterprise users. Administrators need to enable the fast mode policy for their organization.
- →Claude Opus 4.8 fast mode added to GitHub Copilot
- →Broad availability of Claude Opus 4.8 fast mode
- →Reduced cost for fast mode Claude Opus 4.8
- →Administrator policy required for fast mode
Features (2) ›
- Claude Opus 4.8 fast mode added to GitHub Copilot
Claude Opus 4.8 in fast mode is now rolling out in preview on GitHub Copilot, offering significantly faster output token speeds while maintaining intelligence. This is ideal for responsive interactive coding and agentic workflows.
- Broad availability of Claude Opus 4.8 fast mode
Claude Opus 4.8 fast mode will be accessible to Copilot Pro+, Max, Business, and Enterprise users. It can be selected in the model picker across various environments including IDEs, CLI, mobile apps, and JetBrains.
Enhancements (2) ›
- Reduced cost for fast mode Claude Opus 4.8
The fast mode for Claude Opus 4.8 is offered at a reduced cost compared to previous fast modes, though it remains more expensive than the standard Claude Opus 4.8 model. Pricing details are available under Usage Based Billing.
- Administrator policy required for fast mode
Copilot Enterprise and Copilot Business plan administrators must explicitly enable the policy for fast mode for Claude Opus 4.8 in Copilot settings, as it is disabled by default.
https://github.blog/changelog/2026-06-29-claude-opus-4-8-fast-mode-is-now-in-preview-for-github-copilot