Claude · featureeffort parameter

Valid from

2025-11-24

Valid until

still holds

Published

2025-11-24

Recorded by AsOf

2026-11-02

Checked

2026-11-02 · its source page states the value and the date

Confidence

0.70

Sources

“We’ve launched the effort parameter in beta for Claude Opus 4.5, allowing you to control token usage by trading off between response thoroughness and efficiency.”— what the page says, read 2026-11-02

• Claude Platform release notes, November 24, 2025primary · platform.claude.com · 2025-11-24

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