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Show HN: CADBench – every AI CAD tool I tested fails on basic mechanical parts

A research-grade benchmark from CAD-Bench Lab evaluates 10 AI CAD agents on 28 tasks across 20 categories in geometry, engineering, manufacturability, and cognition. Even top-tier AI tools fall short of human performance, especially on engineering and manufacturing tasks.

SourceHacker News AIAuthor: ryanrana
Show HN: CADBench – every AI CAD tool I tested fails on basic mechanical parts
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Key points

  • Human engineers scored 86.4 composite, while the best AI (Zoo Text-to-CAD) scored 71.9.
  • AI agents generally perform worse on manufacturing and cognition layers.
  • The Pareto frontier analysis highlights trade-offs between capability and cost per task.
  • Claude Opus 4.7 with CadQuery achieved the highest geometry score among AIs.

Highlights and analysis are generated automatically and may contain errors. Check the original source.