AI Video, Explained
Why AI Video Takes Minutes, Not Seconds
A still-image filter changes one image. An AI video model builds many new images that all have to agree with each other, which is far more computation.
Every frame is a full generation
An eight-second clip is well over a hundred frames. Each one is generated at roughly the cost of a single AI image, then checked against its neighbors for consistency.
Motion has to stay coherent
The model does extra work to make sure the hair falls the same way, the face does not drift, and the lighting holds — passes that a single-image filter never needs.
Server queues add time
These models run on shared, high-demand hardware. Part of the wait is your job sitting in line behind other people's.
FAQ
How long does Bob Haircut Filter take?
Around five minutes on average. The render runs in the background, so you can close the app and come back to it in the My Videos tab.
Fake the bob before you commit to it
Bob Haircut Filter turns one photo into a viral haircut-reveal video in a few minutes. Free on the App Store.