Claude Opus 4.8 (fast mode) is now in preview for GitHub Copilot

GitHub Copilot is rolling out a preview of Claude Opus 4.8 (fast mode), offering faster output token speeds while maintaining the same intelligence as the standard model. The fast mode is available at reduced cost compared to previous fast modes and supports interactive coding and agentic workflows. It will be accessible to Copilot Pro+, Max, Business, and Enterprise users across multiple platforms.

Claude Opus 4.8 fast mode is now in preview for GitHub Copilot Claude Opus 4.8 fast mode is now rolling out in preview on GitHub Copilot. Fast mode delivers significantly faster output token speeds while maintaining the same intelligence as Claude Opus 4.8, making it well suited for interactive coding and agentic workflows where responsiveness matters. This model is billed at provider list pricing under Usage Based Billing. Fast mode for Claude Opus 4.8 is offered at a reduced cost compared to previous fast modes, though it still costs more than standard Claude Opus 4.8. See GitHub Copilot’s pricing for models and requests https://docs.github.com/copilot/reference/copilot-billing/models-and-pricing for details. Availability in GitHub Copilot availability-in-github-copilot Claude Opus 4.8 fast mode will be available to Copilot Pro+, Max, Business, and Enterprise users. You’ll be able to select the model in the model picker in: - Visual Studio Code - Visual Studio - Copilot CLI - GitHub Copilot cloud agent - GitHub Copilot app - github.com - GitHub Mobile iOS and Android - JetBrains - Xcode - Eclipse Rollout will be gradual. Check back soon if you don’t see it yet. Enabling access enabling-access Copilot Enterprise and Copilot Business plan administrators must enable the policy for fast mode for Claude Opus 4.8 in Copilot settings. The policy is off by default. Learn more learn-more To explore all models available in GitHub Copilot, see our documentation on models https://docs.github.com/copilot/reference/ai-models/supported-models and get started with Copilot. Share your feedback share-your-feedback Join the GitHub Community https://github.com/orgs/community/discussions/categories/copilot-conversations to share your feedback.