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Anthropic models

15 models in this catalog are created by Anthropic; 0 additional models are available through its hosting offerings. The newest dated release listed is Claude Haiku 5.5 (Oct 7, 2026).

Updated: Data as of:
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Where Anthropic’s models perform best

Global benchmark rankings of models created or hosted by Anthropic; these are model scores, not measurements of hosting performance.
ModelBenchmarkMeasuresScore
Claude Sonnet 5.5AA-Briefcase ↗1.1 / combined EloBusiness deliverables1,814 Elo🥇#1 of 57
Claude Opus 5.5Terminal-Bench ↗4.0Working in a terminal64.8%🥇#1 of 14
Claude Opus 5.5GDPval-AA ↗2.1Knowledge work1,866.27 Elo🥇#1 of 38
Claude Opus 5.5LiveBench: Design ↗2.0 / 2026-10-25Documents and presentations86.9%🥇#1 of 25
Claude Opus 5.5Humanity's Last Exam ↗Stable HLE — text-only subsetExpert reasoning61.4%🥇#1 of 68
Claude Opus 5.5Agent Index ↗v1.2 PreviewOverall agent capability90.4 / 100🥇#1 of 26

All models

15 models
All Anthropic models in the dataset, newest reported release dates first.
ModelDate releasedModel details
Claude Haiku 5.5View model
Claude Sonnet 5.5View model
Claude Opus 5.5View model
Claude Fable 5.1View model
Claude Opus 5View model
Claude Sonnet 5View model
Claude Fable 5View model
Claude Opus 4.8View model
Claude Opus 4.7View model
Claude Opus 4.6View model
Claude Opus 4.5View model
Claude Sonnet 4.5View model
Claude Mythos 5Not reportedView model
Claude Mythos PreviewNot reportedView model
Claude Sonnet 4.6Not reportedView model