Claude Haiku 4.5

Overview

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...

Best for

Best for
Cheap fast steps in multi-model agent pipelines

Use cases

• classification
• draft PRs
• triage
• tool-routing

How to use / API access

Call via OpenRouter with model id `anthropic/claude-haiku-4.5`.

• openrouter · anthropic/claude-haiku-4.5 Docs

OpenRouter id: anthropic/claude-haiku-4.5

Benchmarks

• Intelligence Index (artificial-analysis) : 29.6 index
• Coding Index (artificial-analysis) : 43.9 index
• Agentic Index (artificial-analysis) : 16.4 index
• Design Arena 3d (other) : 1147 elo · #65
• Design Arena asciiart (other) : 1186 elo · #30
• Design Arena codecategories (other) : 1158 elo · #65
• Design Arena dataviz (other) : 1165 elo · #62

Enterprise DNA angle

Omni defaults bulk steps to Haiku-class models and escalates only when eval gates fail.

Notes

Claude Haiku 4.5 is listed in the EDNA Models directory from the OpenRouter catalogue.