Unverified50% confidenceBenchmarkExact time

Opus leads on Terminal-Bench 4.0, Humanity's Last Exam and long-context reasoning.

1

Sources

50%

Confidence

Short-term (~14 days)

Relevance

10/14/2026

First Seen

Valid until: 10/28/2026

Sources

Opus vs Argon in Practice: Five Real Tasks Beyond the Benchmarks

Related Entities

Claude Opus 5.5model Terminal-Bench 4.0concept Humanity's Last Examconcept

Related Claims

UnverifiedOpus 5.5 scored 67 on Humanity's Last Exam, Astra scored 57, and Fable 5.1 scored 65.65% similar UnverifiedIn Anthropic's official six-item evaluation, Opus 5.5 won four, including Terminal Bench (66.4 vs. 57.9), Humanity's Last Exam (67.7 vs. 57.2), and GDPVal (1846 vs. 1542).60% similar

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