Expired50% confidenceReleaseExact time
GitHub Copilot has incorporated Claude Opus 4.8 Fast Mode into its preview channel.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/6/2026
First Seen
Valid until: 10/4/2026(expired)
Sources
Related Claims
UnverifiedGitHub officially states that Fast Mode delivers noticeably faster token output speed while maintaining the same level of intelligence as Opus 4.8.73% similarUnverifiedGitHub Copilot Pro subscriptions include access to the Claude Opus model.70% similarUnverifiedGitHub Copilot is gradually shifting to a usage-based (token) billing model, where advanced models such as Claude and Codex require an additional subscription upgrade to use.67% similarVerifiedGitHub Copilot relies on top closed-source models such as GPT-4o.67% similar
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