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

Published June 29, 2026 · Category: AI Create

Overview

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.

Details

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
• 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

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

To explore all models available in GitHub Copilot, see our documentation on models and get started with Copilot.

Share your feedback

Join the GitHub Community to share your feedback.

The post Claude Opus 4.8 (fast mode) is now in preview for GitHub Copilot appeared first on The GitHub Blog.

Source

Originally published at github.blog.

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