Anthropic

Anthropic: Claude Haiku 4.5

Claude Haiku 4.5 Overview

Claude Haiku 4.5 is Anthropic’s lightweight model in the Claude 4.5 series, released in October 2025 under a proprietary license. Designed for speed and cost efficiency, it delivers near-frontier performance while maintaining Anthropic’s AI Safety Level 2 standard. Haiku 4.5 supports both text and multimodal (text and image) inputs, integrates tool use and extended reasoning, and features a 200,000 token context window, making it adept at handling long or complex workflows. Though the parameter count remains undisclosed, it achieves about 73.3% on SWE-bench Verified, reflecting strong coding and reasoning ability. Haiku 4.5 is ideal for developers and researchers seeking rapid, cost-effective model calls for analysis, coding, or multimodal understanding.

Claude Haiku 4.5 Interactive Demo

Claude Haiku 4.5 Details & Performance

Details

Resources

Vision Tasks

Vision LanguageObject DetectionClassificationOCRVisual Question AnsweringCaptioning

Features

Foundation VisionLLMs with Vision CapabilitiesMultimodal Vision

Usage

Past 30 Days

Performance

Avg. Latency

Arena Rankings

Claude Haiku 4.5 Pricing

Claude Haiku 4.5 costs $1.00 per 1M input tokens and $5.00 per 1M output tokens.

Input$1.00 / 1M tokens
Output$5.00 / 1M tokens
Cached input$0.100 / 1M tokens

Pricing updated Jun 28, 2026

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Claude Haiku 4.5 License

Proprietary

License terms and commercial-use guidance for Claude Haiku 4.5.

License information is provided as a guide and is not legal advice.