Claude Haiku 4.5
Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models. Matching Claude Sonnet 4’s performance across reasoning, coding, and computer-use tasks, Haiku 4.5 brings frontier-level capability to real-time and high-volume applications. It introduces extended thinking to the Haiku line; enabling controllable reasoning depth, summarized or interleaved thought output, and tool-assisted workflows with full support for coding, bash, web search, and computer-use tools. Scoring >73% on SWE-bench Verified, Haiku 4.5 ranks among the world’s best coding models while maintaining exceptional responsiveness for sub-agents, parallelized execution, and scaled deployment.
Input
Output
Context
200K
Max Output
64K
Parameters
—
Technical Specifications
Capabilities
Input Modalities
Output Modalities
Features
Benchmarks
Pricing
per 1M tokens • updated regularlyAvailable on 1 Platform
| Platform | Input | Output |
|---|---|---|
OpenRouter | $1.00 | $5.00 |
Resources & Links
Related Tools
Data sourced from official provider APIs and documentation
Last updated: Mar 16, 2026
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