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Muse Spark 1.2 Gains 260 Elo and Passes Claude Opus 4.8

GDPval-AA v2 Elo on agentic knowledge-work tasks

Muse Spark 1.2 Gains 260 Elo and Passes Claude Opus 4.8

Muse Spark 1.2 Gains 260 Elo and Passes Claude Opus 4.8
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Why it matters: Artificial Analysis scored Meta’s Muse Spark 1.2 at 1631 Elo on GDPval-AA v2—260 points above Muse Spark 1.1 (1371) and ahead of Claude Opus 4.8 (1588)—while Claude Opus 5 still leads at 1852.

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Source
Artificial Analysis
Unit
GDPval-AA v2 Elo
Data as of
August 5, 2026
Scope
Meta Muse Spark versus Claude Opus and GPT-5.6 Sol