Last updated: 2026-10-30
What is Claude Haiku?
Anthropic's fastest and lowest-cost Claude tier, described for high-volume, latency-sensitive work such as classification, extraction and routing. Haiku 5.5 lists at $0.10 input / $0.50 output per million tokens (for prompts up to 100,000 tokens), about 20 times cheaper than Sonnet 5.5 ($2 / $10). A good fit for batched routine work like summarization and tagging.
See also
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