AI Basics
Opus, Sonnet, and Haiku
These are the names for the different sizes of Claude models. Opus is built for the hardest work and is the slowest, Haiku is the fastest and lightest, and Sonnet sits in the middle for everyday work. They are the same family with different trade-offs between depth, speed, and cost.
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Member lesson
The definition and sources are public. The complete practical lesson is for members.