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Big BrainNiche Gem
jmcapra
102mo ago
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CADBench – every AI CAD tool I tested fails on basic mechanical parts
by ryanrana·May 9, 2026·1 point·0 comments
AI Analysis
●●●BangerBig BrainDark Horse
Proves mesh-to-BREP failure modes with IRT-calibrated scores across 28-task pilot suite.
Strengths
- •2PL IRT ability θ calibration against task difficulty provides statistically rigorous rankings
- •Pareto frontier visualization shows capability vs cost tradeoffs for production decision-making
- •Human baseline (n=4 senior engineers) establishes realistic ceiling for AI agent performance
Weaknesses
- •Pilot subset of 28 tasks may not capture full complexity of real-world CAD workflows
- •Cost metrics favor API-based agents over local inference, skewing economic comparisons
Category
Target Audience
CAD software developers, AI researchers, mechanical engineers
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HumanEval · BigCodeBench · SWE-bench
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