Every result comes with a percentage, and the first question is always the same: is 82% good? The honest answer is "it depends what you compare it with", and this post explains exactly what the number is so you can read it well.
The number is an angle
Your photo and each character's stills are turned into vectors, long lists of numbers describing shape and texture (see how the matching works). The score is the cosine similarity between your vector and the character's average vector: a measure of the angle between them, where pointing in exactly the same direction is 1.0 and we show it as 100%. It is not "the fraction of your features that match", and it's not a probability. It's a direction comparison in a space with about a thousand dimensions.
Why 100% never happens
Only two identical images produce identical vectors. Two different photos of the same person, taken a minute apart, typically land in the high 80s or low 90s because lighting, angle, and expression all move the vector a little. So a score in the 80s against a character means your photo is about as close to that character's stills as two of your own photos are to each other, which is genuinely close. Scores in the 60s and 70s are ordinary matches; below that, the test is telling you that nobody in the cast is a strong echo of your face.
Why scores don't compare across tests
A 78% in an anime test and a 78% in a K-pop test are not the same thing. Drawn faces and photographs sit in different regions of the model's space, so absolute values shift with the medium. Tests also differ in how many characters they have and how varied the cast is; a cast of 16 similar-looking characters produces a tight cluster of high scores, while a cast with a mascot and a villain in heavy makeup spreads them out. Compare your scores within one test, never between tests.
Read the gap, not the value
The most informative thing on the result screen isn't the top score; it's the distance between first and second place. A winner at 81% with the runner-up at 72% is a decisive match: your face sits clearly closer to one character. A winner at 81% with the runner-up at 80% means you're between two characters, and a different photo could flip them. Both are correct results; they tell you different things. When the gap is small, look at the two characters together: the features they share are probably the ones the model found in you.
Why the average, and why the best still
Characters are ranked by their average vector across all their stills, which keeps one unusual frame (a scream, a shadowed close-up) from dragging a character up or down. The image you're shown, though, is the individual still that came closest to your photo, because that's where the resemblance is most visible. So the number reflects the character overall; the picture reflects the best moment.
Comparing with friends
If you're settling a "who looks more like X" argument, use the same conditions for everyone: similar lighting, front-facing, no filters, and ideally photos taken with the same camera in the same place. Then compare each person's score for that character. A five-point difference under matched conditions means something; a five-point difference between a sunlit selfie and a dim bathroom mirror shot does not. Our photo guide has the full list of what to hold constant.
A one-line summary
The percentage measures how closely your photo's shape signature points in the same direction as the character's. High 80s is very close, 70s is a solid match, and the gap to second place tells you how sure to be. Everything else is for fun.