Using Claude Haiku 4.5 on OpenRouter

Implementation guide · Claude 4.5 · Anthropic

Serverless

OpenRouter exposes Claude Haiku 4.5 through model ID anthropic/claude-haiku-4.5. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-07-26. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at OpenRouter and generate an API key.
  2. 2
    Use the OpenRouter SDK or REST API to call anthropic/claude-haiku-4.5 — see the documentation for request format.
  3. 3
    You'll be billed $1.00/1M input, $5.00/1M output tokens. See full pricing.
API PortalDocumentationPricingModel Card

Code Examples

See OpenRouter documentation for integration details.

Pricing on OpenRouter

TypePrice (per 1M)
Input tokens$1.00
Output tokens$5.00

Capabilities

VisionMultimodalJSON / Tool useStructured OutputsCode Execution

About Claude Haiku 4.5

Claude Haiku 4.5 is Anthropic's Claude 4.5 model with multimodal text and image input. It offers a 200K-token context window and scores 73.3 on SWE-bench Verified.

Full model details →

Model Specs

Released2025-10-01
Context200k
ArchitectureDecoder Only
Knowledge cutoff2025-02

More Models on OpenRouter

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Also available on(8)

AWS Bedrock$0.80/1MGCP Vertex AI$0.80/1MMicrosoft Foundry$1.00/1M
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Provider

OpenRouter

OpenRouter, Inc.

New York, NY, USA