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 for details.
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









