tech
December 16, 2025
Introducing Claude Haiku 4.5
Claude Haiku 4.5, our latest small model, is available today to all users.
TL;DR
- Claude Haiku 4.5 is a new, cost-efficient AI model offering high performance.
- It provides coding performance similar to Claude Sonnet 4 but at lower cost and higher speed.
- Ideal for real-time tasks like chat assistants, customer service, and pair programming.
- Enhances development workflows, including multi-agent projects and rapid prototyping.
- It is available via the Claude API, Amazon Bedrock, and Google Cloud's Vertex AI.
- Haiku 4.5 exhibits strong safety and alignment, outperforming other models in certain safety assessments.
- It is released under the AI Safety Level 2 (ASL-2) standard.
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