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GitHub Blog
Claude Opus 4.8 (fast mode) is now in preview for GitHub Copilot
GitHub has launched a preview of Claude Opus 4.8 in fast mode for users of GitHub Copilot. This mode significantly boosts output token speeds, making it suitable for tasks requiring quick interactions, such as coding and automated workflows. While the new fast mode offers a faster option, it does come at a higher price relative to standard versions, although it is cheaper than prior fast modes. This feature rollout is gradual and is available only to specific user tiers, requiring administrators to enable it in Copilot settings.
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Published 29 Jun 2026, 17:45 UTC1 min read
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Summary
TL;DR
- Claude Opus 4.8 fast mode enhances output speed significantly.
- Suitable for interactive coding and responsive workflows.
- Offered at a reduced cost compared to previous models.
- Available for Copilot Pro+, Max, Business, and Enterprise users.
- Rollout is gradual, requiring user awareness.
Interesting facts
- Fast mode allows for greater engagement in coding workflows.
- This update reflects GitHub's focus on improving user experience.
- Policy settings must be enabled by administrators for usage.