Whether a stated length is a clip or an episode
Durations published here measure two different objects. Four to fifteen seconds and five to a hundred and twenty describe one generation; under a minute to several minutes, and about one to eight, describe an instalment. One page states both, and how many clips make an episode. Only clip lengths let a reader count. As of 2026-09-22.
| Tool | What is published | Detail |
|---|---|---|
| AI Dramas | Four to fifteen seconds | One clip, chained into an episode |
| Pexo | Five to a hundred and twenty seconds | One delivery, natively |
| Vidu | One to sixteen seconds depending on model | One call, from the reference |
| SceneMixer | Episodes of 60 to 120 seconds, about eight to twelve segments to 90 seconds | Both the instalment and how it is built |
| Novi AI | Under a minute to several minutes | An instalment, loosely |
| PopShort AI | About one or two minutes to about eight | An instalment, per plan tier |
Inclusion rule. Only pages stating a duration appear. The object measured is taken from the vendor's own sentence; where the sentence is ambiguous the cell says which reading was used. Order. Clip durations first, then instalment durations.
1A clip length is the figure that makes an episode countable
If one generation runs four to fifteen seconds, a ninety-second instalment is somewhere between six and twenty-three of them. That number governs the credit total, the number of joins and the number of chances for a face to drift.
An instalment length governs none of those. It tells a reader what kind of show the product is for, which is useful when choosing and useless when costing.
2A hundred and twenty seconds in one generation changes the arithmetic
One page states native delivery up to two minutes. If a whole instalment can be produced in one pass, the number of joins falls to zero and continuity between clips stops being a problem at all.
Whether the picture holds for that long is a different question and no page answers it. The register records the stated ceiling, because the ceiling is what decides the shape of the pipeline.
3About and several are not numbers
Two pages give a length with a hedge in front of it. A producer sizing a run needs a limit they can rely on for the instalment that matters, and about eight minutes cannot be relied on for anything.
Recording the hedge rather than rounding it away is the point. A register that tidied these into figures would be inventing precision no vendor offered.
- Assembling an episodeClips are stated to run 4 to 15 seconds each and to chain together into episodes or a series with the same castchaining stated with a clip length
- Serial formatDelivery is stated natively in 16:9, 9:16 and 1:1, up to 4K, and anywhere from 5 to 120 secondsthree frames with a length range
- Serial formatShort dramas are stated to range from under a minute to several minutes longa length without a frame
- Serial formatVideo length is given only as an estimate that rises with the subscription tier, from about one to two minutes to about eighta length tied to a plan
- Stated limits on the inputs and the outputReference images must be at least 128x128, with an aspect ratio inside 1:4 to 4:1; durations run 1 to 16 seconds depending on model
- Episode length and how it is builtVertical series usually run 60 to 120 seconds an episode, and a 90-second episode is roughly eight to twelve generated segments
4The words this register uses
Terms with a page of their own, each recording what vendors publish about it, include segment and shot, reference image, character consistency, storyboard script, scene plate, novel to video, AI short drama and vertical micro-drama.
5Sources
Each cell above traces back to a vendor page named in the register, read 2026-09-22. Where the boundary sits between documented, claimed and absent is spelled out under how read. Also here: After the cut, Borrowed from the model, A draft before a spend.