Unverified50% confidenceBenchmarkExact time
Claude Haiku jumped from 0.68 in version 4.5 to 0.95 in version 5.5, an improvement of 27 points.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/12/2026
First Seen
Valid until: 1/10/2027
Sources
Related Entities
Related Claims
UnverifiedClaude Haiku 5.5 scored 0.95, surpassing Claude Sonnet 5's score of 0.88.80% similarUnverifiedHaiku 5.5's score on Terminal Bench 4.0 rose from 0% in the previous generation to 39.2%.78% similarUnverifiedClaude Haiku 4.5, which ranked highest in Brier Skill, scored only +0.013, with the confidence interval still spanning zero.74% similarUnverifiedHaiku 5.5 achieved a score of 1620 on the relevant coding benchmark, far higher than Haiku 4.5's score of 735.74% similarUnverifiedIn the creator's benchmark, Haiku 5.5's Terminal Bench score improved from 0% on Haiku 4.5 to nearly 40%.72% similar
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