Anthropic
Claude Haiku 4.5
anthropic/claude-haiku-4.5
Fastest Claude, near Sonnet 4 quality at lower cost.
TextText, Images, Files → TextReady on endue
- Fast replies
- Low cost
Overview
Good for
Written by endue
- Fast replies
- Low cost
Not ideal for
From the model’s specs
Nothing in the specs rules out common agent work.
Capabilities
| Tool use | Supported |
|---|---|
| Structured output | Supported |
| JSON mode | Supported |
| Reasoning | Supported |
| Vision | Supported |
| Audio input | Not supported |
| Video input | Not supported |
| File input | Supported |
| Long context | Supported |
Specifications
- Model ID
anthropic/claude-haiku-4.5- Family
- Claude Haiku
- Context window
- 200K tokens
- Input
- Text, Images, Files
- Output
- Text
- Knowledge cutoff
- 2026-01
- Released
- 2026-03-15