Expired60% confidenceFactTime unknown
Claude Code has added a Fast Mode, which uses the same Opus 4.6 model but with faster output speed, switchable via the /fast command.
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
6/2/2026
First Seen
Valid until: 8/31/2026(expired)
Sources
Related Entities
Related Claims
UnverifiedAfter switching to Opus 4, the content creator's evaluation of Claude Code improved noticeably, finding it to be relatively fast and intelligent.71% similarUnverifiedAfter switching to Opus 4, the reviewer's assessment of Claude Code improved noticeably, describing it as 'smarter and faster'67% similarUnverifiedAfter configuring Claude Code Router, the Claude Code interface still displays the use of the Opus 4.7 model, but the backend is actually calling DeepSeek V4 Flash.62% similarUnverifiedIn the same complex scientific research code project test, Codex's execution speed was several times slower than Claude Code.62% similar
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