Unverified50% confidenceBenchmarkExact time
Opus 5.5 in Max mode scored 58 on the Artificial Analysis Intelligence Index, while Sonnet 5.5 scored 56.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
10/14/2026
First Seen
Valid until: 10/28/2026
Sources
Related Entities
Related Claims
VerifiedOpus 5.5 scored 66 on the Terminal agent benchmark, higher than Sonnet's 55 and Astra's 57.9.80% similarUnverifiedOn the Artificial Analysis composite intelligence index, Muse Wonderful ranked second at around 56 points, behind only Opus 5.5's 58 points, tied for second with Sonnet, above Fable 5.1, and leading GPT-6 Astra by about three points.78% similarUnverifiedIn the agentic computer use benchmark, Opus 4.8 on the high setting and Sonnet 5 on the max setting perform comparably, but Sonnet 5 consumes more tokens76% similarUnverifiedIn a comprehensive business test covering dozens of professions and industries, Sonnet 5.5's score is nearly on par with Opus 5.5.75% similarUnverifiedIn the Zapier automation benchmark, Argon took 51%, ahead of Sonnet 5.5's 45%.74% similar
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