Seedance 2.5 Video Generator
ByteDance Seedance 2.5: one continuous take of up to 30 seconds, audio generated in sync with the picture, and up to 50 image, video and audio references.
Sign in to generate — your prompt will be saved.
One model, every look
Six clips generated with Seedance 2.5 — no style transfer, no post work.
30 seconds, one take
Up to 30 continuous seconds per generation — roughly double what models in this class usually manage.
Up to 50 references
30 images, 10 videos and 10 audio clips in one request, so a face or a product stays put.
Audio built in
Sound is generated with the picture by default — dialogue, footsteps and room tone already in sync.
Any framing
16:9, 9:16, 1:1, 4:3, 3:4 and 21:9, or let it match the aspect of your reference image.
What is Seedance 2.5?
Seedance 2.5 is the flagship video model from ByteDance's Doubao team, and the successor to the Seedance 2.0 line. Its headline change is duration: Seedance 2.5 generates up to 30 seconds in one continuous pass, where almost every model in this class — including Seedance 2.0 — tops out around 15 seconds. That difference is not just a bigger number. A 30-second window is long enough to hold a beginning, a turn and an ending inside a single unbroken shot, so you get a scene rather than a fragment.
The second change is reference capacity. Seedance 2.5 accepts up to 50 assets in one request — as many as 30 images, 10 videos and 10 audio clips — which is what makes it hold a character's face, a product's shape or a brand's palette steady across a whole series. Audio is generated together with the picture by default, so footsteps, room tone and dialogue land where the action is. Duration runs from 4 to 30 seconds, output is 480p or 720p, and aspect ratios cover 16:9, 9:16, 1:1, 4:3, 3:4 and 21:9.
One note worth setting straight: Seedance 2.5 is not simply "Seedance 2.0 but higher-resolution". It trades resolution for length and reference depth — 2.0 reaches 1080p, while 2.5 caps at 720p. Pick 2.5 when the shot needs to run long or stay consistent against many references; pick 2.0 when you need the extra pixels. This Seedance 2.5 video generator drives the model directly, one clip per click. The full workflow uses engines like this one under the hood to plan and chain every shot of a narrated story for you.
What people use Seedance 2.5 for
Three flows that only open up once a single take can run a full 30 seconds.
A 30-second scene in one unbroken take
The usual way to fake a long shot is to generate several clips and hide the seams at the cut. Seedance 2.5 removes the problem instead of hiding it: describe the whole beat — a walk through a crowd, a slow reveal, a conversation that turns — and it comes back as one continuous take. Nothing drifts at the join, because there is no join.
Product and brand spots with the look locked down
Hand Seedance 2.5 your packshots, a reference clip of the motion you want and a swatch of the brand palette, and it honours all of them at once. Because the reference budget runs to 50 assets, you can pin the product from several angles rather than hoping one hero image is enough — which is what keeps a shape recognisable when it turns.
Dialogue scenes that arrive with their own audio
Audio in Seedance 2.5 is generated alongside the picture, not dubbed on afterwards, so speech lands on the mouth and the room sounds like the room. For a 30-second two-hander that removes the whole sound pass — no lining up a separate voice track, no rebuilding ambience under it.
How it works
Three steps from idea to shareable clip — no editor, no plugins.
01 · Write
Write one prompt
Describe the shot in plain language. Include subject, action, lighting and camera move. The longer the better — modern models reward detail.
02 · Pick
Pick mode + duration
Switch between Text, Image-to-Video, or First / Last frame. Pick the resolution and length you want — the price updates live as you choose.
03 · Generate
Generate, download, iterate
Hit Generate and your clip lands in the library within minutes. Save it, tweak the prompt and run it again, or turn the same idea into a full narrated story video in the Story Into Video workflow.
Use the Seedance 2.5 video generator inside Story Into Video
This page gives you one Seedance 2.5 clip per click — up to 30 seconds, audio included. For a single scene that is often all you need, and a 30-second take goes a lot further than the 5-second clips this format used to mean.
A full story is still more than one shot. Prototype the look here with single Seedance 2.5 prompts, then take the same idea into the complete workflow — describe your story, pick a style, and the pipeline writes the shot plan, locks your characters across scenes, and generates every shot with narration and subtitles. Generation is asynchronous and a full story takes several minutes, so start it and come back.
Seedance 2.5 specs at a glance
- Billing
- Per second — the rate varies by quality, see the generate button
- Duration
- 4 – 30 seconds (continuous)
- Quality
- 480p · 720p
- Aspect ratio
- 16:9 · 9:16 · 1:1 · 4:3 · 3:4 · 21:9
- Reference inputs
- Up to 30 images + 10 videos + 10 audio (50 assets max)
Pricing follows Story Into Video credits — the live cost is shown on the generate button.
Built for
Story creators who ship — not just dabble.
Short-form video creators
TikTok, Reels, YouTube Shorts. Turn a daily script into a stack of cinematic 5–15s clips without a camera crew.
Marketers & brand teams
Brand-safe product shots and product-in-scene b-roll for ads, landing pages and email — locked styles across the campaign.
Writers, educators, agencies
Draft a fully narrated video of a script before committing to live action — characters, voice-over and subtitles all handled inside Story Into Video.
