A family that breathes
Trial, 28 September 2026: the drawn family (look C) made to move with AI video, cut out, and packed so it plays on an iPhone inside the card. Each clip starts and ends on the still picture, so the card can rest on the still and play a clip every so often, or when the family is tapped.
Kling and Seedance were planned but could not run: the fal account is locked until its balance is topped up. Tap any picture to play it; the room behind is the card's own wall, placed roughly.
The three clips for the card
Every clip tried
Left: the clip cut out over the room. Under it: what the model returned, on green. "Faces" opens the worst frame for each face beside the still (still, clip, difference), at twice size.
Face drift, measured
For each face, every frame is lined up with the still (shifted up to 8 pixels) and the remaining difference averaged. A head that only moves scores near the first frame's own number; a turned head scores high; a redrawn face scores high AND looks different in the crop. Numbers are out of 255.
| Clip | Model | Dad | Boy | Mum | Girl | Size |
|---|
The switch between still and clip
Measured here, in this browser's own video decoder, over the family's solid pixels. Under about 3 out of 255 is not visible at card size.
| Clip | First frame vs still | Last frame vs still |
|---|
Cost per card
| Route | Three 5 s clips | Notes |
|---|---|---|
| Wan 2.2 kf2v flash, 720P (used) | about $0.54 | Alibaba Model Studio; rate as remembered, confirm on the console bill. One re-roll in three: about $0.72. |
| Wan 2.1 kf2v plus | about $1.50 | Softer, nearly still. Not better. |
| MiniMax Hailuo-02, 768P, 6 s | about $0.84 | Faces change. Not usable. |
| Kling v3 pro on fal (not run) | $2.10 | fal's own price, $0.14/s. Needs the fal top-up. |
| Veo 3.1 Lite first and last frame on fal (not run) | $1.20 | 8 s only, $0.05/s. Needs the fal top-up. |
Cutting out and packing run on this Mac at no cost, about a minute and a half per clip.