Claude Haiku 4.5
by Anthropic
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.
Specifications
Technical details and pricing.
Benchmarks
10 benchmark scores from Artificial Analysis.
Composite Indices
Intelligence, Coding, Math
Standard Benchmarks
Academic and industry benchmarks
Frequently Asked Questions
What is Claude Haiku 4.5 good for?
Use Claude Haiku 4.5 for everyday tasks like writing, summarizing, brainstorming, and getting clear explanations.
How much does Claude Haiku 4.5 cost?
Pricing is based on usage. Current rates are $1.00/1M tokens for input and $5.00/1M tokens for output.
Can I try Claude Haiku 4.5 for free?
Yes. You can start a chat instantly and test the model before deciding on a plan.
Does Claude Haiku 4.5 support images or audio?
Claude Haiku 4.5 can understand images.
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Benchmarks and pricing are sourced from Artificial Analysis where available. OpenRouter specs are used as a fallback.