Archive
Everything published here
3 pieces, newest first.
How it worksWhat the model is doing between the upload and the number that comes back.AccuracyWhere AI scoring is reliable, where it drifts, and how to tell which you are looking at.PrivacyWhat happens to a photo you upload to an AI tool, and what to check before you do.
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What an image model is actually doing when it scores you
There is no ruler anywhere in the pipeline. Understanding what replaces it explains almost every surprising result people get.
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Why a rubric beats a single score
One number is a summary of things that do not correlate. Splitting it apart is the difference between a result you can act on and a result you can only feel.
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Why the same subject scores differently every time
The spread across a single afternoon is wider than almost anyone expects. Most of it is yours to control, which is the good news.