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 10 run to 20 seconds or more in a single generation, and Wan 3.0 Prime 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.
10 models, read from the live registry when this page loaded.
| # | Model | Longest | 5 seconds | Resolution | Example |
|---|---|---|---|---|---|
| 1 | Wan 3.0 Prime The flagship Wan tier, for shots that carry the piece. | 30s | 35 cr | 1080p, 720p, 480p | Watch |
| 2 | Kling 4.0 Kuaishou's Kling 4.0: long, multi-shot clips with sound. | 30s | 40 cr | 1080p, 720p | Watch |
| 3 | Seedance 2.5 Single shot clips up to 30 seconds, with audio. | 30s | 115 cr | 1080p, 720p, 480p | Watch |
| 4 | P-Video Fast iteration, with a draft mode. | 20s | 5 cr | 1080p, 720p | Watch |
| 5 | P-Video-2 Pruna's quality-focused P-Video, up to 1080p. | 20s | 10 cr | 1080p, 720p | Watch |
| 6 | LTX 2.5 Fast Built for speed, with native audio and high resolutions. | 20s | 12 cr | 4k, 1440p, 1080p, 720p | Watch |
| 7 | LTX 2.3 Video Fast The previous LTX generation, tuned for speed. | 20s | 23 cr | 4k, 1440p, 1080p | Watch |
| 8 | FLUX 3 Video Coherent, physically plausible motion from a single frame. | 20s | 45 cr | 4k, 1440p, 1080p, 720p | Not yet |
| 9 | FLUX 3 Max Black Forest Labs' top FLUX 3 tier, up to 20 seconds. | 20s | 45 cr | 1080p, 720p | Watch |
| 10 | LTX 2.3 Extend Lightricks' LTX 2.3, extending your video. | 20s | 96 cr | Not available | Watch |
Questions
How long can an AI video model generate in one go?
On Musevate the catalogue averages about 12 seconds, and 10 models reach 20 seconds or more in a single generation, the longest being Wan 3.0 Prime at 30. Those are the ones listed here. Every number comes from our own catalogue, where each model's lengths are recorded from its provider's published schema rather than 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 720p, or at the smallest size a model sells where it does not sell 720p, so that the lengths can be compared with each other; the studio quotes the real figure for the length you choose before you commit.
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Musevate routes each generation to the strongest compatible model, and every model above is available without a separate subscription.
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