Claude Haiku 4.5

Overview

The fastest and cheapest model in the family, for high-volume work where latency matters more than depth. It is billed from the same balance as every other model and API here, and the price of each call comes back in the response.

Run Claude Haiku 4.5 with an agent

Each guide pairs this model with a currently compatible agent, explains their separate roles, and opens the shared Composer with both selections ready.

• Hermes + Claude Haiku 4.5

  Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

  Open guide

• Claude Code + Claude Haiku 4.5

  Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

  Open guide

• OpenClaw + Claude Haiku 4.5

  Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

  Open guide

• pi + Claude Haiku 4.5

  Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

  Open guide

• Kimi Code + Claude Haiku 4.5

  Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

  Open guide

• OpenCode + Claude Haiku 4.5

  Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

  Open guide

Pricing

The default plan, in USD per million tokens.

Your balance and per-call records come from /v1/credits and /v1/generation.

Use it

Point your client at the gateway and pass this model id. Nothing else changes.

import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  baseURL: "https://gateway.agentsky.dev",
  apiKey: process.env.AGENTSKY_API_KEY, // ast_…
});

const message = await client.messages.create({
  model: "anthropic/claude-haiku-4-5",
  max_tokens: 256,
  messages: [{ role: "user", content: "Summarise this ticket." }],
});
console.log(message.usage.cost); // USD, in the response

Questions

More from Anthropic