# Claude Haiku 5.5

> Anthropic's Claude Haiku 5.5 is the fastest and most cost-efficient model in the Claude 5.x lineup. It delivers instant responsiveness for lightweight tasks, supports tool use and function calling, and features 1M-token context with vision input. Built for rapid ideation, summarization, and classification at low cost. Adaptive thinking always on.

**ID**: `anthropic/claude-haiku-5-5`  
**Creator**: Anthropic  
**Category**: text  
**Context**: 1M tokens  
**Pricing**: $0.10 / $0.50 per 1M · billed by your provider (BYOK)  
**Released**: 2026-10-07  
**Web page**: https://anyrouter.dev/model/anthropic/claude-haiku-5-5

**Input modalities**: text, image  
**Output modalities**: text  

**Capabilities**: chat, streaming, function-calling, coding, vision, reasoning

**Aliases**: `claude-haiku-5-5`, `claude-haiku-5.5`, `anthropic/claude-haiku-5-5`, `anthropic/claude-haiku-5.5`

## Usage

**Endpoint**: `POST https://anyrouter.dev/api/v1/chat/completions`

```bash
curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "anthropic/claude-haiku-5-5",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'
```

## Providers

| Provider | Input | Output |
| --- | --- | --- |
| anthropic-byok | $0.10/M (list) | $0.50/M (list) |
| openrouter-byok | $0.10/M (list) | $0.50/M (list) |
| aihubmix-byok | $0.10/M (list) | $0.50/M (list) |

BYOK routes are billed by your own provider key — AnyRouter charges $0. Rates marked (list) are the provider's published list price.

## Source

- Upstream docs: https://platform.claude.com/docs/en/models/haiku-5-5/overview