Discovery
AI video models that run to 20 seconds or more
Most AI video models generate five or ten seconds. That is not a limitation anybody chose: coherence decays with length, and a model is trained for the span it can hold a face, a hand and a background together for.
These 6 run to 20 seconds or more in a single generation, and Seedance 2.5 reaches 30. Worth knowing before you choose one: four short shots usually cut better than one long take, and they fail more cheaply — a bad shot is one generation to redo rather than the whole thing.
6 models, read from the live registry when this page loaded.
| # | Model | Longest | 5 seconds | Resolution | Example |
|---|---|---|---|---|---|
| 1 | Seedance 2.5 Single shot clips up to 30 seconds, with audio. | 30s | 125 cr | 1080p, 720p, 480p | Watch |
| 2 | Seedance 2.5 Reference Seedance 2.5 driven by reference material. | 30s | 125 cr | 1080p, 720p, 480p | Not yet |
| 3 | P Video Fast iteration, with a draft mode. | 20s | 5 cr | 1080p, 720p | Watch |
| 4 | LTX 2.3 Video Fast The previous LTX generation, tuned for speed. | 20s | 16 cr | 4k, 1440p, 1080p | Not yet |
| 5 | LTX 2.5 Fast Built for speed, with native audio and high resolutions. | 20s | 25 cr | 4k, 1440p, 1080p, 720p | Not yet |
| 6 | FLUX 3 Video Coherent, physically plausible motion from a single frame. | 20s | 45 cr | 1080p, 720p | Not yet |
Questions
How long can an AI video model generate in one go?
On Musevate the catalogue averages about 11 seconds, and 6 models reach 20 seconds or more in a single generation, the longest being Seedance 2.5 at 30. Those are the ones listed here. Every number comes from the model's own schema as this page is served, not from a launch announcement.
Why are most AI video clips only five or ten seconds?
Because generating video is expensive per second and coherence decays: the longer the clip, the more chance a face, a hand or a background drifts. Models are trained for the length they hold together for, and most of them hold together for five to ten seconds. A model that offers thirty is making a claim about coherence as much as about cost.
Can I join several short clips instead?
Often that is the better answer. Real footage cuts every few seconds, and four five-second shots usually read better than one twenty-second take — they also cost less and fail more cheaply, because a bad shot is one generation to redo rather than the whole thing. A single long take is worth paying for when the shot genuinely cannot cut.
Does a longer clip cost proportionally more?
Broadly yes. Most models are billed by the second of output, so twenty seconds costs about four times what five seconds costs on the same model. The prices in this table are for a five second clip at the reference size so that they can be compared with each other; the studio quotes the real figure for the length you choose before you commit.
Try any of them on one account
Musevate routes each generation to the strongest compatible model, and every model above is available without a separate subscription.
Create your first video