---
title: "Introducing Claude Haiku 4.5"
description: "Claude Haiku 4.5, the latest small model, is available to all users, offering a new option for near-frontier performance with lower cost and greater speed. Compared with Claude Sonnet 4, it delivers similar coding performance at one-third the cost and more than twice the speed, while surpassing Sonnet 4 on some computer-use tasks. Priced at $1/$5 per million input and output tokens, the model targets real-time assistants, customer service agents, pair programming, Claude Code workflows, and sub-agent orchestration, where Sonnet 4.5 can plan and delegate parallel subtasks to multiple Haiku 4.5 instances. Safety evaluations found low rates of concerning behavior and greater alignment than Haiku 3.5; the model is released under ASL-2 and is available through Claude apps and Code, the API, Amazon Bedrock, and Google Cloud’s Vertex AI."
---

# Introducing Claude Haiku 4.5

[Anthropic](https://yomu.fyi/company/anthropic) · Jul 22, 2026

**Type:** Announcement

## Summary

Claude Haiku 4.5, the latest small model, is available to all users, offering a new option for near-frontier performance with lower cost and greater speed. Compared with Claude Sonnet 4, it delivers similar coding performance at one-third the cost and more than twice the speed, while surpassing Sonnet 4 on some computer-use tasks. Priced at $1/$5 per million input and output tokens, the model targets real-time assistants, customer service agents, pair programming, Claude Code workflows, and sub-agent orchestration, where Sonnet 4.5 can plan and delegate parallel subtasks to multiple Haiku 4.5 instances. Safety evaluations found low rates of concerning behavior and greater alignment than Haiku 3.5; the model is released under ASL-2 and is available through Claude apps and Code, the API, Amazon Bedrock, and Google Cloud’s Vertex AI.

## Context

Historically, models have sacrificed speed and cost for quality. The release addresses real-time, low-latency uses such as chat assistants, customer service agents, pair programming, and AI-assisted development, while providing near-frontier performance at greater cost efficiency.

## Approach / What changed

Claude Haiku 4.5 combines similar coding performance to Claude Sonnet 4 with one-third the cost and more than twice the speed. It supports computer use, sub-agent orchestration, and rapid coding workflows, and is offered through Claude apps and Code, the Claude API, Amazon Bedrock, and Google Cloud’s Vertex AI.

## Takeaways

- Claude Haiku 4.5 costs $1 per million input tokens and $5 per million output tokens.
- Sonnet 4.5 can break complex problems into multi-step plans and orchestrate multiple Haiku 4.5 instances to complete subtasks in parallel.
- Safety evaluations found substantially greater alignment than Claude Haiku 3.5, and the model was released under the AI Safety Level 2 standard.

**Tags:** [AI](https://yomu.fyi/topic/ai), [Claude](https://yomu.fyi/topic/claude), [Model Serving](https://yomu.fyi/topic/model-serving)

- Source: [Anthropic](https://www.anthropic.com/news/claude-haiku-4-5)
- Source URL: https://www.anthropic.com/news/claude-haiku-4-5
- Ingested by Yomu: 2026-09-09T11:37:11.395Z

[Read original post](https://www.anthropic.com/news/claude-haiku-4-5)