# claude-haiku-4-5 — API, Pricing & Context Window

claude-haiku-4-5 on Vivgrid: Anthropic's fast, low-cost Haiku model with a 200K context window, Messages API, and geo-distributed acceleration.

`claude-haiku-4-5` is Anthropic's fastest and most affordable current model, designed for high-volume, latency-sensitive workloads that still benefit from Claude's quality. It offers a **200K-token context window** on the **Messages API**.

Vivgrid accelerates `claude-haiku-4-5` across **AMER and EMEA**, making it an excellent default for real-time assistants and large-scale agent fleets.

## Specifications

|     |     |
| --- | --- |
| **Provider** | Anthropic |
| **Model ID** | `claude-haiku-4-5` |
| **Best for** | Coding |
| **Context window** | 200,000 tokens |
| **Max output** | 64,000 tokens |
| **Modalities** | Text, Image |
| **Tool / function calling** | Yes |
| **Knowledge cutoff** | 2025-02 |
| **Acceleration** | ⚡ Geo-Distributed — AMER, EMEA |

## Pricing

Pricing in USD per 1M tokens, matching the provider's rates.

| Input | Cached input | Output |
| --- | --- | --- |
| $1.00 | $0.10 | $5.00 |

## Quick start

Call `claude-haiku-4-5` through Vivgrid's unified, OpenAI-compatible endpoint. Get an API key from the [Vivgrid Console](https://console.vivgrid.com/).

```bash
curl https://api.vivgrid.com/v1/messages \
  -H "Authorization: Bearer $VIVGRID_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{\
    "model": "claude-haiku-4-5",\
    "max_tokens": 1024,\
    "messages": [\
      { "role": "user", "content": "Say hello in English, Chinese and Spanish." }\
    ],\
    "stream": true\
  }'
```

## Ideal use cases

- Real-time chat and assistant experiences
- High-throughput classification and extraction
- Cost-sensitive tool-calling agents
- Fast first-pass steps in larger agent pipelines