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Claude Haiku 4.5

by Anthropic
API Available

Claude Haiku 4.5 is Anthropic's latest small AI model, launched on October 15, 2025. It offers similar coding performance to the previous state-of-the-art model, Claude Sonnet 4, but at one-third the cost and more than twice the speed. This model excels in real-time, low-latency tasks, making it particularly beneficial for applications like chat assistants and customer service agents. Claude Haiku 4.5 also enhances the coding experience, providing a responsive environment for multiple-agent projects and rapid prototyping, while maintaining high intelligence and speed.

Specifications

Released
December 2025

Pricing

Input
$1 per million tokens
Output
$5 per million tokens

TBD

Capabilities

high intelligenceremarkable speedefficient code generationinstruction-following for slide text generationself-corrects in real-timehandles complex workflows reliably

Best For

Chatbots & Conversational AI

Building conversational interfaces, customer support bots, and virtual assistants

Code Generation

Writing, debugging, and explaining code across programming languages

Automation & Agents

Building AI agents for workflow automation and autonomous task execution

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