7 published rows that will run past fifteen seconds

Most published video rows cap at 15s. These seven do not: Seedance 2.5 (30s, 47cr, 720p), Grok Imagine Video (30s, 7cr, 720p), Sora 2 T2V (20s, 10cr, 720p — API sunsets 2026-09-24), Sora 2 Pro Storyboard (25s, 30cr), LTXV2 Fast (20s, 4cr, 4K), Flux 3 T2V (20s, 9cr), PrunaAI P-Video (20s, 2cr, 1080p).

Fifteen seconds is the catalog ceiling for a long list of live rows — Kling 3 Turbo, Wan 2.6, Pixverse 5.6, Happy Horse 1.0, Seedance 2.0, Veo 3.1's 8-second takes. That is the duration menu the row actually ships. If the shot has to be one continuous take past that mark, you are on one of the seven below, or you are extending and living with a seam.

Where audio is null in the catalog snapshot, this page does not invent native sound.

The 15-second wall

Duration is a menu, not a slider. The model has to hold the whole sequence coherent at once. Most families still publish 5 / 8 / 10 / 15. Past fifteen the failure mode is identity drift, lighting crawl, a background that sharpens.

A longer ceiling does not make the model better at product orbits. It makes it eligible for jobs that cannot cut: a single-take walk, a 20-second pour, a 30-second locked-off process. A 6-second clip you can use beats a 30-second clip you have to hide.

This list is eligibility, not a ranking. Pick on duration first, then audio, resolution, and whether the row still exists next month.

The seven

1. Seedance 2.5 — 30s, 47 credits, 720p

Seedance 2.5 is ByteDance's long single-shot row: 4–30 seconds, 720p, 47 credits, native audio. The catalog lists text-to-video. Image-to-video is the tool door — AI image-to-video plus this model URL, never a folded -image-to-video slug.

Use it when the brief is one continuous hold. Do not start at 30 seconds. Start at 8–12, then lengthen once identity holds. A 47-credit miss at 30 seconds is an expensive restage.

2. Grok Imagine Video — 30s, 7 credits, 720p

Grok Imagine Video is the cheap 30-second row: 6 / 10 / 15 / 20 / 30 seconds, 720p, 7 credits, native audio. Catalog category is text-to-video.

Write the prompt as one arc — establish, turn, close. A 30-second generate reads the whole paragraph as a single shot. Native audio is on; do not also prompt a voiceover you will replace.

3. Sora 2 Text to Video — 20s, 10 credits, 720p (API sunsets 2026-09-24)

Sora 2 Text to Video still publishes 4 / 8 / 12 / 16 / 20 seconds, 720p, 10 credits, native audio. It is on this list because the ceiling is 20 seconds, not 15.

It is also on a clock. The Sora 2 API sunsets 2026-09-24. Do not point a new pipeline at this row. If the work has to survive October, pick Flux 3, LTXV2 Fast, or PrunaAI.

4. Sora 2 Pro Storyboard — 25s, 30 credits

Sora 2 Pro Storyboard is the image-to-video storyboard row: 10 / 15 / 25 seconds, 30 credits, native audio. Catalog resolution is unset; do not invent 4K. Same OpenAI family, same sunset pressure as the text-to-video row.

Use it only if you already live in storyboard beats and you need a 25-second pass this week. After 2026-09-24, this list has five rows, not seven.

5. LTX 2 Text to Video Fast — 20s, 4 credits, 4K

LTX 2 Text to Video Fast is the 4K long take at 4 credits: 6–20 seconds in two-second steps, native audio. That is the resolution-and-price outlier on this page.

Twenty seconds at 4K is a delivery argument. This is the row that publishes 4K past fifteen seconds without a 47-credit Seedance ticket. Preview the motion at 8 seconds before the 20-second call.

6. Flux 3 Text to Video — 20s, 9 credits

Flux 3 Text to Video is Black Forest Labs' frontier T2V: 5–20 seconds, 9 credits, native audio. Catalog res is unset; the model description lists up to 1080p. Do not quote a 4K tier that is not on the row.

Native audio is the product: dialogue, effects, and ambience in the same pass. If the 20-second take has to talk and is not allowed to depend on Sora, this is the row. Picture-only work is cheaper on PrunaAI or LTX Fast.

7. PrunaAI P-Video — 20s, 2 credits, 1080p

PrunaAI P-Video is the budget long clip: 1–20 seconds, 1080p, 2 credits, text-to-video and image-to-video. Catalog audio is null — do not claim native audio. Draft mode is in the description for fast iteration.

Two credits to twenty seconds is the duration sketch: same prompt at 8s, 16s, then 20s. Promote to a native-audio row only after the picture holds.

How to pick among them

Duration first, or you will talk yourself into a 15-second model and an extend chain you did not budget.

Does it have to be one take past 15s? If a cut is legal, leave this page.

Does it have to talk? Seedance 2.5, Grok Imagine Video, both Sora rows (while they last), LTX Fast, and Flux 3 publish native audio. PrunaAI does not.

Does it have to be 4K? LTX Fast publishes 4K. Seedance 2.5 and Grok Imagine Video publish 720p. Flux's catalog resolution is unset; treat 1080p as the description cap.

Does it have to exist after 24 September 2026? Strike both Sora rows. Remaining: Seedance 2.5 and Grok for 30 seconds; LTX Fast, Flux 3, and PrunaAI for 20.

Grok at 7 credits is the cheap 30-second ticket. Seedance at 47 is the expensive hold. PrunaAI at 2 credits is the sketch. LTX Fast at 4 credits is the 4K 20-second. Flux 3 at 9 credits is the native-audio 20-second that is not Sora.

What still belongs under fifteen seconds

A talking close-up, a product orbit, a 9:16 hook — none of those jobs get better because you asked for twenty-two extra seconds. They get more time to drift. Most of the catalog is built for that work on purpose.

Extend is a different product. VEO 3.1 Extend is a 7-second hop, not a native 30. If you are stitching, you are not on this list. You are on a cut.

Run the seven from the AI video generator with the same prompt and the duration the row actually allows. Keep the file you can use. Do not keep the file that is longest.

FAQ

Is 30 seconds always better than 15?

No. Thirty seconds is eligibility for a single continuous take. It is a longer window for identity to crawl. If the edit can cut, cut. Seedance 2.5 and Grok Imagine Video are for the shot that cannot.

Can I treat Sora 2 as a 20-second home through the autumn?

Not past 2026-09-24. The text-to-video row is still in the catalog at 10 credits, 720p, native audio, max 20 seconds. Flux 3, LTX Fast, and PrunaAI are the 20-second rows that are not on that date.

Does PrunaAI include a soundtrack at 2 credits?

The published brief sets audio to null. Do not claim native audio. Use it for picture length. Move to Flux 3, LTX Fast, Seedance 2.5, or Grok Imagine Video when the take has to make sound.

Why isn't Veo 3.1 on this list?

Veo 3.1 publishes 4 / 6 / 8 seconds. That is under the wall. Native audio and a 4K tier do not change the duration menu. Extend is a second row, 7 seconds per hop, not a native 20.