Unverified50% confidenceBenchmarkExact time
Opus 5.5 uses 0.015 em dashes per thousand words, a 99% decrease compared to Opus 5's 2.92.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/16/2026
First Seen
Valid until: 1/14/2027
Sources
Related Entities
Related Claims
UnverifiedIn Opus 5.5, the frequency of the "is more than a _, it's a _" sentence pattern is 98 times that of human text.69% similarUnverifiedOpus 5.5 achieved 81.8% on the Computer Use benchmark, slightly above Fable 5.1's 80.7%.68% similarUnverifiedOn the 0-100 "affected prose" scale, human text scores 6.65, Opus 5 scores 16.75, and Opus 5.5 drops to 10.57.68% similarVerifiedOpus 5.5 reaches the level of Fable 5.1 on most tasks, but with approximately 40% lower operating costs and faster speed.67% similarUnverifiedThrough a series of strategy adjustments, the usage cost of Opus 5 can be reduced by up to 80%, while still outperforming Opus 4.8 on some benchmarks.67% similar
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