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Artificial Analysis finds higher Claude tiers beat max effort on cost per task

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Artificial Analysis says Claude Opus 5.5 at xhigh effort scores 57, above Claude Sonnet 5.5 at max effort at 55, with 40% lower cost per task and about half the time per task.

It also reports that Claude Fable 5.2 at high effort beats Opus 5.5 at max effort, and Fable 5.2 at low effort beats Opus 5.5 at high effort.

The pattern does not hold for Claude Haiku 5.5, where each step up in effort costs more, according to the same post on X.

Written by AI from the articles below · updated Nov 11, 7:35 PM ET

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Latest developmentNov 11, 7:18 PM ET
Artificial Analysis finds higher Claude tiers beat max effort on cost per task

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Nov 11
  1. Artificial AnalysisOfficial
    Artificial Analysis finds higher Claude tiers beat max effort on cost per task

    AIArtificial Analysis says Claude Opus 5.5 (xhigh, 57) outscores Claude Sonnet 5.5 (max, 55) with 40% lower cost per task and about half the time per task. Claude Fable 5.2 (high) also beats Opus 5.5 (max), and Fable 5.2 (low) beats Opus 5.5 (high). The pattern does not hold for Claude Haiku 5.5 (max), where each step up costs more.

    Image from @ArtificialAnlys's post

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