Observed arrival · 2026-11-14
PreconBench puts AI through construction cost checks
A public benchmark compares 10 AI models on 78 construction cost-management tasks drawn from US public-project documents.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Construction estimators evaluating AI-assisted cost work
- Worth noticing
- Its overall pass rate weights five task types by their stated share of a cost manager’s working time.
Field notes
The page separates sign-off pass rate from a partial-credit points score, so a model can rank differently depending on which measure a reader follows. Its task grid also exposes uneven performance: bid comparison is markedly weaker than several other categories in the displayed results. The site says its task documents come from public US building projects and that answer keys were written in advance; the extracted evidence does not independently verify those claims.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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