Verified75% confidenceFactExact time

The Claude model family is generally divided into three tiers: Haiku, Sonnet, and Opus.

3

Sources

75%

Confidence

Long-term

Relevance

10/4/2026

First Seen

Sources

LangChain Anthropic 1.7.5 Released: Claude Sonnet 5.5 Compatibility Added

Related Entities

Claudemodel Anthropiccompany

Related Claims

UnverifiedOpus is the name of the flagship model in Anthropic's Claude series, which also includes two tiers: Sonnet (mid-weight) and Haiku (lightweight).79% similar UnverifiedAnthropic's Claude series adopts a tiered naming structure of Fable > Opus > Sonnet > Haiku.71% similar

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