Haiku 5.5
Anthropic
🧠 Language Model
Haiku 5.5 by Anthropic (2026-10-07): the fastest Claude, for high-volume, latency-sensitive work such as classification, extraction and routing. 1M context, 128K output, adaptive thinking.
Specifications
Input modalitiestext, image
Output modalitiestext
Capabilitiestools, reasoning
Relative speed●●●●● Blazing
Context window1,000,000 tokens
Max output128,000 tokens
Vision inputYes
Tool callingYes
Input price$0.175 / 1M
Output price$0.875 / 1M
Pricing
$0.175 / 1M input tokens · $0.875 / 1M output tokens
Platform credit pricing — live rates on the Models page.