Claude Haiku — Fast, low-cost model

Fast model for small edits, classification, summaries, and subagent work. By Anthropic. Where it runs: API. Pricing: Pay per token.

Frequently asked questions

What is Claude Haiku best for?

Low cost: A fraction of Sonnet’s price for simple tasks. Fast autocomplete: Low latency for quick edits.

How do I write better prompts for Claude Haiku?

Give Claude Haiku a clear goal, the relevant files or context, constraints, and acceptance criteria. Pregoo's Prompt Builder scores your prompt and estimates its token cost.

What should I watch out for with Claude Haiku?

Not for complex multi-file reasoning.

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