Unverified50% confidenceFactExact time
Haiku 5.5 does not accept temperature 0, any value other than 1 returns a 400 error, and setting top_k likewise errors.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/18/2026
First Seen
Valid until: 1/16/2027
Sources
Related Entities
Related Claims
UnverifiedClaude Haiku 4.5 and Haiku 5.5 both scored the same 0.875 vs 0.875 on the two tasks, and the newer small model did not bring a score improvement.69% similarUnverifiedClaude Haiku 5.5 already scored 97.5% accuracy on the logical reasoning task at none, and Gemini scored 100% at none.64% similarUnverifiedClaude Haiku 5.5 scored 0.95, surpassing Claude Sonnet 5's score of 0.88.64% similarUnverifiedHaiku 5.5 achieved a score of 1620 on the relevant coding benchmark, far higher than Haiku 4.5's score of 735.63% similarUnverifiedClaude Haiku jumped from 0.68 in version 4.5 to 0.95 in version 5.5, an improvement of 27 points.61% similar
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