Artificial Analysis(@ArtificialAnlys):Claude Opus 5.5 (max) is a top performer in agentic knowledge work. It leads AA-Briefcase v1.1 at 1,822 Elo (+143 over Fable 5.1) and GDPval-AA v2.1 at 1,846 Elo (+111 over Claude Fable 5.1, +138 over Claude Opus 5). On AA-Briefcase it leads across analytical quality and presentation sub-scores, and sits just behind Fable 5.1 for rubric-based scoring

Artificial Analysis

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Independent analysis of AI

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Artificial Analysis@ArtificialAnlys

2026.09.22 16:41

Claude Opus 5.5 (max) is a top performer in agentic knowledge work. It leads AA-Briefcase v1.1 at 1,822 Elo (+143 over Fable 5.1) and GDPval-AA v2.1 at 1,846 Elo (+111 over Claude Fable 5.1, +138 over Claude Opus 5). On AA-Briefcase it leads across analytical quality and presentation sub-scores, and sits just behind Fable 5.1 for rubric-based scoring

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