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Dimorphism pillar - Facial features
Face Shape
Where the lower-face outline sits on the spectrum, read as a projection onto a study axis and supported by jaw width and chin width against cheekbone width. It carries the smallest weight of any measured signal, because facial width-to-height ratio is not reliably dimorphic in adults and this proxy has only modest held-out signal. It is not a perception predictor.
By RateMyFaceAI. Methodology
What the reading means
Face Shape places a face on the same 0 to 10 spectrum as every other signal in this pillar: 0 is the softest, most feminine shape and 10 the strongest, most masculine shape. There is no ideal band and neither end is better than the other. The reading comes from a set of landmarks, so photo angle, expression and lighting all move it.
The pillar index combines all 10 signals, over whichever of them a face carries a reading for. A signal with no reading drops out instead of counting as a neutral 5, and the signals do not all count equally.
Component readings
- Study outline-axis projection
- Jaw width / cheekbone width
- Chin width / cheekbone width
The report shows each of these beside the signal, so you can see which part of the reading drove it.
How well it separates
Across the 320 profiles with a reading, men average 8.37 and women 6.26. That is a large separation: 0.85 pooled standard deviations apart, a statistic called Cohen's d. The two groups overlap on every signal here, so a single reading never identifies anyone's sex.
Male mean
8.37 / 10
Female mean
6.26 / 10
Readings run from 0.75 to 10.00, with a median of 8.63.
How much this signal counts toward the index follows the published evidence behind it, not the separation measured here. A photographed celebrity library is not a population sample, so read these figures as a description of this library.
How 320 celebrities read
Every profile with a reading, measured from AI-placed, hand-verified landmarks and ordered from the most masculine reading to the most feminine.
Signature tool
See my closest celebrity match
Upload a front and side photo, place the pins, and every profile in the library is ranked by the measurements you share with it.
Related signals
Face Shape is read alongside these, from the same front photograph.