Changelog
Last entry 6 October 2026
Every change to a threshold, formula, scale or reference figure, and every correction to something the site claimed, is dated here with the numbers before and after. Design and new pages are not listed. How the measurements work today is on the methodology page; this list is also published as changelog.json.
All changes
| Date | Type | Subject | Change |
|---|---|---|---|
| 2026-10-06 | Data | Face measurement statistics | Published the face measurement statistics page: the 102 reference faces measured across every reading the tools make, as medians, ranges and counts. The score validity figure was recomputed with the current engine (ρ = −0.072). No per-face value or photo is published. |
| 2026-10-06 | Method | Eye spacing, upturned eyes, long nose | Three thresholds recalibrated on the reference set. Eye spacing: wide-set from 1.10 to 1.27 and close-set from 0.90 to 1.10 (about the outer 15% each way); with the old values 89 of 102 faces read wide-set and none close-set, now 14 and 13. Upturned eyes from +8° to +5°, the same boundary as positive canthal tilt (1 face to 22). Long nose from 1.45 to 1.28, the 85th percentile (0 faces to 17). |
| 2026-10-06 | Data | Reference counts on type pages | Every face, eye, nose and lip type page now shows how many of the 102 reference faces got that reading, remeasured with the current engine. |
| 2026-10-06 | Correction | How the site describes photo handling | The site's one-sentence description was rewritten. The old wording said no photo is uploaded, which is true of the measurement tools only: the AI features (simulations, Face Report, age and look-alike reads) upload the photo the user chooses when they start one. The description now says both, and the same sentence is used on every page. |
| 2026-10-06 | Site | Payments | Payments are processed by Whop as merchant of record; the pricing, terms and privacy pages were updated to say so. |
| 2026-09-28 | Method | Attractiveness score | The formula is unchanged, but the 1-10 score is now a percentile against the 102 reference faces (1 + 9 × percentile ÷ 100). Before, the 0-100 composite was divided by 10 and 80% of real faces landed between 7.0 and 7.5. The PSL bands were rebuilt on the percentile. The score was tested against 2,513 people's ratings of the same faces: ρ = −0.07, no relationship; the result is published on the tool page. |
| 2026-09-28 | Correction | Claims removed from tool pages | Removed statements the measurements did not support: "most faces score 4-7", a "separate reference by sex" (the tool does not ask for sex), a typical symmetry range of 85-95 and a typical golden ratio range of 70-90. |
| 2026-09-15 | Correction | Measurement engine: non-square photos | Fixed an aspect-ratio error. The engine treated horizontal and vertical landmark coordinates as the same unit, so on any non-square photo (such as a 3:4 phone portrait) ratios, tilt angles and symmetry were skewed. Cropping the 102 reference faces to 3:4 changed the face shape of 27 of them before the fix and 11 after (noise). |
| 2026-09-15 | Method | Face shape, lip and PD calibration | Face shape thresholds recalibrated on the 102 reference faces: with the old values heart and oblong never occurred and 30 of 53 men read as triangle; the new split is oval 38, round 13, heart 12, square, triangle and oblong 10 each, diamond 9. The downturned-lip threshold moved from 0° to −6.5° (82 of 102 neutral faces read downturned, now 19). Pupillary distance was about 3 mm low: the iris scale is now corrected by ×1.059, and the stated error band is ±3 mm. |
| 2026-09-14 | Correction | Canthal tilt | Tilt is now measured for each eye along the axis between the inner corners, not against the image horizontal. A tilted head had added +θ to one eye and −θ to the other, which showed up as 11-17° of false asymmetry at 6° of head roll. The result card shows each eye. Thresholds: negative below 0°, neutral 0-5°, positive 5° and above. |
| 2026-09-07 | Correction | Face shape classifier | The classifier returned "diamond" for 9 of 9 real test photos. Forehead width had been measured between the brows; it is now measured at the temples, and the thresholds were set from measured faces instead of a taxonomy that measures length from the hairline. |
| 2026-09-02 | Site | Launch | thefaceanalysis.com launched with free measurement tools that run in the browser on a 478-point face mesh. |