Claude Haiku 5.5
Fast Claude model for responsive assistance, classification, and lightweight agents
Live
Open / InstallLast updated October 22, 2026
Description
Fast Claude model for responsive assistance, classification, and lightweight agents. Supports a context window of 1,000,000 tokens. Supports extended reasoning. Supports tool calling. Input priced at $0.1 per million tokens. Weights are not publicly released; access is via the provider API.
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Author
Anthropic
Platform
api
Pricing model
paid
Categories
- Research
- Design
- Productivity
Tags
- llm
- closed-weights
- anthropic
- claude-haiku
- reasoning
- tool-calling
- text
- image
- pdf
Capabilities
- Text generation
- 1,000,000 token context
- Extended reasoning
- Tool calling
- File attachments
- Image input
Information
TypeLarge Language Model
Model TypeText Generation
SourceModels Dev
AddedOctober 20, 2026