Unverified50% confidenceFactExact time
Claude模型命名采用能力分级：Opus代表旗舰性能级别，Sonnet居中，Haiku主打轻量高速
1
Sources
50%
Confidence
Long-term
Relevance
7/18/2026
First Seen
Sources
Related Claims
UnverifiedClaude has three main models: Haiku focuses on being lightweight and fast, Sonnet is the everyday workhorse, and Opus is the most powerful and most expensive.77% similarUnverifiedIn Anthropic's model naming, Opus represents peak performance, Sonnet represents balance between performance and cost, and Haiku represents lightweight speed74% similarUnverifiedAnthropic uses the capability-tier naming of Claude 3 Haiku/Sonnet/Opus, corresponding to three inference cost tiers: speed-first, balanced, and performance-first, respectively.69% similarUnverifiedThe performance improvement of Claude 4.5 Sonnet in actual use is only about 10%, far from matching Opus's capabilities on complex tasks such as debugging and planning.69% similar
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