Contamination
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
Benchmark contamination means the exam's text reached the training pile — public benchmarks circulate, piles are scraped from the same public, and a model retains statistical residue of what it read.
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A model that read the exam may hold its answers the way it holds any regularity — invisibly, with no citation.
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The learner did not cheat; the drawer leaked.