Claude Haiku 5.5
Anthropic launched Claude Haiku 5.5, a model tuned for high-volume and latency-sensitive work. It has a 1M-token context window, supports up to 128k output tokens, and uses adaptive thinking with an effort parameter.
What it does
Use it for high-volume, latency-sensitive tasks that need long context or extended output.
- Availability
- Available on the Claude API, Amazon Bedrock, AWS, Google Cloud, and Microsoft Foundry
- Pricing model
- Not established
- Deployment
- Hosted through listed providers
- Privacy
- Not established
- Licence
- Not established
Capability
Modality
Access
Deployment
Pricing
Target user
Evidence
4 claims- Claude Haiku 5.5 is available on the Claude API. [1]
We’ve lowered the price of prompt cache reads on Claude Sonnet 5.5 from $0.20 USD to $0.10 USD per million tokens: 0.05x the base input price instead of 0.1x.
Anthropic. Quoted text is outside CC BY 4.0 and keeps its original rights. - It has a 1M-token context window. [1]
It has a 1M token context window , 128k max output tokens, and adaptive thinking with the effort parameter .
Anthropic. Quoted text is outside CC BY 4.0 and keeps its original rights. - It supports up to 128k output tokens. [1]
It has a 1M token context window , 128k max output tokens, and adaptive thinking with the effort parameter .
Anthropic. Quoted text is outside CC BY 4.0 and keeps its original rights. - It has adaptive thinking with the effort parameter. [1]
It has a 1M token context window , 128k max output tokens, and adaptive thinking with the effort parameter .
Anthropic. Quoted text is outside CC BY 4.0 and keeps its original rights.
Sources
1
1
AnthropicOwner-controlled
https://docs.claude.com/en/release-notes/overview#2026-10-07
Retrieved 2026-10-29 00:08 UTC
Verified
Versions
5| Version | Effective | Change | Changed fields | State |
|---|---|---|---|---|
| 5 | 2026-10-29 00:08 UTC | material change | deployment | Current |
| 4 | 2026-10-20 09:53 UTC | material change | availability, deployment | Current |
| 3 | 2026-10-09 19:39 UTC | material change | availability, deployment | Current |
| 2 | 2026-10-08 20:34 UTC | material change | capability, pricing, availability, deployment | Current |
| 1 | 2026-10-07 21:25 UTC | publication | None | Current |
In briefs
1- Liquid AI’s decision models classify inputs without writing a response Daily brief 2026-10-07
Original catalog content is licensed under CC BY 4.0, attributed to wowsuchai. Source quotations and linked content keep their original rights.