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Claude Haiku 5.5
Claude Haiku 5.5 is the cheapest, fastest and most capable small model yet — around 75% less to run and built for high-volume, cost-sensitive tasks.
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Why Teams Choose Claude Haiku 5.5
Claude Haiku 5.5 is the cheapest, fastest and most capable small model for high-volume, cost-sensitive work.
- Cost-EfficientRunning Claude Haiku 5.5 costs roughly three quarters less than Haiku 4.5 on average.
- Built for VolumeHandles short, repeated jobs — compaction, summarization, lookups and sorting at scale.
- Coding SidekickWorks as a subagent beside Opus 5.5 and Sonnet 5.5, and fits live support and browser tasks.
How to Use Claude Haiku 5.5
Three quick steps to put Claude Haiku 5.5 to work on repetitive tasks.
Claude Haiku 5.5 FAQ
Quick answers about Claude Haiku 5.5 pricing, safeguards and availability.
How does Claude Haiku 5.5 pricing compare with Haiku 4.5?
It is about 75% cheaper on average, with 90% lower pricing on prompts up to 100K tokens and 50% lower beyond that.
What changed for Sonnet 5.5 cache reads?
Sonnet 5.5 cache reads dropped to $0.10 per million tokens, half the previous $0.20 rate, trimming most agentic Sonnet 5.5 costs by about a fifth.
What monthly API credits do Max and Team subscribers get?
Subscribers now receive monthly credits: $100 for Max 5x, $200 for Max 20x, and up to $500 pooled for Team, spendable on any Claude model.
How does Claude Haiku 5.5 perform on alignment evaluations?
Alignment results improved markedly over Haiku 4.5 — fewer misaligned behaviors surfaced, and the model was less willing to go along with misuse.
What safeguards apply to Claude Haiku 5.5?
Cyber safeguards sit between Haiku 4.5 and the recent larger models in strictness, while biology safeguards mirror those of Sonnet 5, Sonnet 5.5 and Opus 5; verification programs are open for wider research work.
Where can I access Claude Haiku 5.5 and migrate?
You can call claude-haiku-5-5 today on the Claude Platform, AWS, Google Cloud and Microsoft Azure; the migration guide walks through the switch.
Start Building with Claude Haiku 5.5
Spin up claude-haiku-5-5 on the Claude Platform, check the migration guide, and put the new monthly API credits toward your next agent or app.