Claude Haiku 5.5
Language modelCard summarizedFor high-volume, latency-sensitive tasks such as classification, extraction, and routing
Overview
Anthropic · 01Haiku, front
Haiku 5.5
For high-volume, latency-sensitive tasks such as classification, extraction, and routing
- Cost
- $0.10 in
- Context
- 1M
- Input / output
- $0.10 / $0.50
- Max output
- 128K
- Knows up to
- June 2026
- Released
- 7 Oct 2026
Anthropic's latest Haiku-class large language model. It significantly outperforms Claude Haiku 4.5 across many domains and in a few areas rivals or exceeds Claude Sonnet 5.5, but is broadly less capable than Claude Opus 5 and crosses no new RSP thresholds. p.2–3
claude-haiku-5-5- Input / output per 1M
- $0.10 / $0.50
- Context window
- 1M
- Max output
- 128K
- Knows up to
- June 2026
- Reasoning
- Adaptive
- Weights
- Closed
About this card. A model card is the maker's own account of a model: what it's for, how it was trained and tested, and where it falls short. This page condenses Anthropic's System Card: Claude Haiku 5.5. Every claim carries its source page.