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Model profile

Claude Haiku 5.5

Anthropicdeveloper
2026-10-07release date
#138 / 348Safety rank
Not rankedFreedom rank

Evidence summary

Safety. Claude Haiku 5.5 has an estimated Safety rank of #138; its 90% source-sensitivity interval is #1–#248. Its behavior-only rank is #156; company governance moves the combined estimate to #138. Published Safety evidence spans 4 eval lineages and 3 of 7 components. Its strongest relative result is Manager Coercion Bench (coercion_ladder_depth, #4 of 47); its weakest is SpeciEval (speciesism, #113 of 133).

Freedom. Claude Haiku 5.5 does not meet the evidence gate for a Freedom rank.

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Only models sharing at least one published sub-eval are listed.

Official and reference links

Safety evals

Rank and direction are specific to the Safety portfolio. Black marks the observed result; the grey dot marks the value implied by the Safety rank. Values stay on each source’s native scale.

Eval / sub-evalRankValueDistributionSource
AA-Omnisciencehallucination_rate#62 / 361↓0.4042Source ↗official
Manager Coercion Benchcoercion_ladder_depth#4 / 47↓3.8Source ↗self run
SpeciEvalbelief_animal_sentience#96 / 133↑6.6Source ↗official
SpeciEvalland_animal_4ns#67 / 133↓4.53Source ↗official
SpeciEvalsea_animal_4ns#94 / 133↓4.9Source ↗official
SpeciEvalspeciesism#113 / 133↓2.6Source ↗official
TACbase_welfare_rate#49 / 94↑26.28Source ↗self run

Freedom evals

No published sub-eval result contributes to this model’s Freedom profile.