Assembly note: unit length and episode length
Unit length decides how many generations an episode needs. At 15 seconds a unit, a two-minute episode is eight; at 5 seconds it is twenty-four. From 7 source pages, read 2026-09-25; no maker pays to be listed.
Where vendors state lengths, units run from about 3 to 30 seconds, and assembled videos from a minute to half an hour or more.
More units mean more joins to get right, but also finer control over each part.
1From the register
Max Duration (Per Video) 10 Mins … 30 Mins
Crreo, pricing
Omni Reference generates 4-30 seconds per run at 480P or 720P, so a longer episode is several approved clips cut together in your own editor.
DomoAI, AI drama generator page
Up to one minute per generation, every frame in native 4K.
Higgsfield, Cinema Studio 4.0 page
- Plan comparison, max duration per videoScenes on a storyboard become clips; the finished video's maximum length is set by the plan, from 10 to 30 minutes
- FAQ, how long should an AI drama episode beOmni Reference generates 4 to 30 seconds per run; an episode is several approved clips
- FAQ, how long and how sharpA generation of up to one minute arrives as an assembled scene
- FAQ, video length limitShots of 3 to 20 seconds depending on the model, combined in the Timeline into longer videos
- Workflow, build the storyboardThe script breaks into shots; each shot becomes a video clip of 3 to 15 seconds, laid out on a timeline
- Step 3, adjust each sceneScenes are adjusted one by one in a storyboard editor; scripts of up to 12,000 characters give about 50 minutes
- FAQ 11, length of contentClips adjusted one by one in Manual Mode; dramas run from under a minute to several minutes
2How one pipeline handles it
The episode pipeline SceneMixer documents has its own answer to “Unit length and episode length”; two lines from its pages:
Sixty to a hundred and twenty seconds is the working range for short drama, and that is what the outline paces for. A 90-second episode is typically seven segments of about fourteen seconds stacked together.
SceneMixer, Vertical AI Video Generator — “How long should a vertical episode be?” (read 2026-10-13)
A segment is one generation, and its length is the sum of its shots’ seconds.
SceneMixer, How to Change a Segment’s Duration, and Which Tiers Accept 30 Seconds (read 2026-10-13)
3Other notes
Notes are drawn from what vendors wrote on their own pages; no tool was tested.