Short vertical video is where face swaps travel furthest, and it also happens to be where they swap best. A few choices make the difference between a clip that lands and one that looks off.
Reels and Shorts are meant to be brief, and so is a good face swap — videos here are capped at 60 seconds, which is more than a Short needs. A tight ten-to-thirty second clip processes quickly and holds attention, so keep it short on purpose.
Choose a moment where the face is reasonably front-on and steady. A close-up talking to camera, a lip-sync, a reaction — all swap cleanly. Fast dancing, whip-pans and heavy motion blur are where any swap struggles, so save those for the parts you are not swapping.
Film or crop to vertical for the feed if you like — the swap does not care about the shape of the frame, only about seeing the face clearly. Portrait clips from a phone work as-is.
On a phone the finished video has a Save button that hands it to your share sheet, so it goes straight to your camera roll or into the app you post from. On a desktop it downloads normally. Either way, save it within 24 hours before it is deleted.
Videos made with free credits carry a small watermark. If you are posting to a public account and would rather it were clean, paid credits remove it.
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