Claude · featureFast mode

Valid from

2026-02-07

Valid until

still holds

Published

2026-02-07

Recorded by AsOf

2026-11-01

Checked

2026-11-01 · its source page states the value and the date

Confidence

0.70

Sources

“We’ve launched fast mode in research preview for Opus 4.6, providing significantly faster output token generation through the speed parameter.”— what the page says, read 2026-11-01

• Claude Platform release notes, May 12, 2026primary · platform.claude.com · 2026-05-12
• Claude Platform release notes, February 7, 2026primary · platform.claude.com · 2026-02-07

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