Claude Model Tiers: Opus, Sonnet, Haiku
also Opus · Sonnet · Haiku
Anthropic's three Claude model families balancing capability, speed, and cost: Opus is the most capable, Sonnet is balanced, and Haiku is the fastest and cheapest.
Analogy
Like shipping options: overnight (Opus) for hardest jobs, standard (Sonnet) for most, and economy (Haiku) for fast cheap tasks.
Why it matters
Picking the right tier per task controls the cost and latency of automations that call Claude at scale.
In practice
Using Haiku to classify incoming messages and Opus only for drafting complex proposals.