---
title: Claude Haiku 4.5
description: Claude Haiku 4.5 by Anthropic — fastest and most cost-efficient Claude model.
---

# Claude Haiku 4.5

**Key:** `claude-haiku-4-5`  
**Provider:** [Anthropic](/en/providers/anthropic/)  
**Support:** `runnable`

## Capabilities

chat

## Specifications

| Field | Value |
|-------|-------|
| Context window | 200 000 tokens |
| Input modalities | text |
| Output modalities | text |

## When to use

Fastest and cheapest Anthropic model. Use for high-volume classification, summarisation, or simple extraction pipelines where latency and cost matter more than deep reasoning capability.

## Provider documentation

→ [Anthropic migration guide](https://docs.anthropic.com/en/docs/about-claude/models/migrating-to-claude-4)
