Claude Haiku 4.5 is a fast and cost-efficient AI model created by Anthropic. Released in October 2025, it is designed for tasks requiring quick responses and high throughput. It is considered Anthropic's fastest model, delivering near-frontier intelligence at a lower cost and latency than larger models.
Haiku 4.5 boasts several key features, including a 200,000-token context window and the ability to process both text and images. It also includes capabilities such as extended thinking, computer use, and context awareness. It can operate tools and handle custom software applications. Haiku 4.5 matches Claude Sonnet 4's performance on coding, computer use, and agent tasks. It achieved a 73.3% score on SWE-bench Verified, establishing it as one of the top coding models.
Claude Haiku 4.5 is available on the Claude Developer Platform, Amazon Bedrock, Google Cloud's Vertex AI, and Microsoft Foundry. Users can also access it through Claude.ai on the web, iOS, and Android. As of October 2025, its pricing is $1 per million input tokens and $5 per million output tokens.
