Guides and explainers

Short, honest writing about faces: how look-alike matching works, where the words came from, and how to get a result worth sharing.

These guides exist because the interesting part of a look-alike tool is not the answer, it is what the answer does and does not mean. Two photographs of the same person taken a decade apart can score lower than two photographs of strangers taken at the same event. A model does not know who you resemble; it knows how close two aligned, cropped, 112 by 112 pixel faces sit in a 128-dimensional space, and that is a narrower claim than it sounds.

So the articles below take the tool apart: what happens between the upload and the result, which photos give a clean reading, why the word doppelganger is German, and how this site compares with the other ways of answering the same question. Nothing here is sponsored, and where the tool is weaker than an alternative, the comparison article says so.

If you would rather just see your own result, the tool is on the homepage, and it takes about a second.