Seedance 2.0 4K features and capabilities
Seedance 2.0 4K is ByteDance's Seedance 2.0 video model generating at native 4K on Morphic. It renders a true 3840x2160 frame rather than upscaling a lower-resolution result, so fine detail holds across motion, not only in still frames. It keeps the full Seedance 2.0 toolkit: multimodal input, native audio, and controllable camera moves.
| Feature | What it does | Best for |
|---|---|---|
| Native 4K | Renders a true 3840x2160 frame instead of upscaling a 1080p result | Large-format, product macro, broadcast finishing |
| Detail across motion | Holds sharp edges and clean texture through movement, not just in stills | Fast action, moving cameras, wildlife |
| Reframe from one master | Crops a 4K master to clean 1080p vertical, square, and inset cuts | Multi-format delivery from one render |
| Multimodal input | Combines up to 9 images, 3 clips, and 3 audio files with text | Reference-driven and audio-led shots |
| Native audio | Generates synced sound with the picture in one pass | Ambience, effects, and music without a separate step |
Native 4K resolution
Seedance 2.0 4K renders at full 3840x2160 from the start, so fine detail, fabric, and texture are generated at that resolution rather than interpolated up from a smaller frame. That is what lets a wide establishing shot survive a crop and a product macro hold its surface detail.
Detail held across motion
The change that makes the resolution count is that definition stays crisp through movement, not only in single frames. Fast action, spray, and camera moves keep sharp edges and clean texture instead of smearing, which is where an upscaled 1080p render tends to fall apart.
One master, many crops
Because the master is a full 3840x2160, you can punch in and reframe to 1080p vertical, square, or tight inserts and still keep clean edges. One 4K generation covers several delivery formats, so a single render serves the wide cut, the vertical, and the close insert.
Multimodal input and native audio
Seedance 2.0 4K keeps the rest of the Seedance 2.0 toolkit. Combine up to nine reference images, three video clips, and three audio files with a text prompt in one generation, and the model returns the clip with synced native audio in the same pass.
Seedance 2.0 4K technical specs
| Spec | Seedance 2.0 4K |
|---|---|
| Provider | ByteDance (served on fal) |
| Resolution | Native 4K (3840x2160) |
| Duration | 4 to 15 seconds |
| Modes | Text-to-video, image-to-video, reference-to-video |
| Aspect ratios | 21:9, 16:9, 4:3, 1:1, 3:4, 9:16, auto |
| Reference input | Up to 9 images, 3 clips, and 3 audio files |
| Audio | Native, synchronized |
| Released | June 2026 |
Seedance 2.0 4K use cases
Large-format and OOH
Render masters that hold up on cinema screens, billboards, and 4K displays without softening when scaled up. Native resolution is what survives the blow-up.
Shoot once, reframe many
Generate one 4K master and pull clean 1080p crops for vertical, square, and tight inserts, with no separate render per format.
Product and macro detail
Resolve fabric weave, brushed metal, and surface micro-texture for premium product and beauty film, where the detail is the sell.
Film and broadcast finishing
Deliver master-quality footage that grades, keys, and conforms cleanly inside a professional 4K post pipeline.
VFX and compositing plates
Crisp high-resolution plates with clean edges for rotoscoping, keying, and set extension work.
Nature and wildlife detail
Capture fur, frost, spray, and foliage detail that only resolves at 4K, for documentary-grade establishing shots.
How to get the best out of Seedance 2.0 4K
Seedance 2.0 4K rewards a brief that gives the resolution something to render: real texture, surface, and a camera move worth holding in focus. A few practices carry most of the quality:
- Name the texture. Call out the surface that should read, such as fabric weave, frost, brushed metal, or spray, so the detail the 4K is there for is in the prompt.
- Frame for the crop. If you plan to reframe, stage the 4K master with headroom around the subject so the vertical and square cuts both work.
- Write motion, not a photo. Describe how the subject and camera move over the clip, since holding detail across motion is the model's edge.
- Add one sound cue. The model generates audio with the picture, so name the ambience, effect, or music rather than leaving the clip silent.
- One beat per clip. Pack a single action into a few seconds rather than crowding several into one generation.
- Pick the ratio up front. Choose 21:9 for a cinematic cut or 9:16 for vertical, since framing changes how you stage the action.
Seedance 2.0 4K prompt guide
A strong prompt reads like a short shot brief, not a caption. Two things drive the result: a clear list of what the shot contains, and concrete wording in place of vague wording.
What goes in a prompt
| Element | What to include | Example |
|---|---|---|
| Subject | Who or what is in frame, described concretely | a watchmaker seating a hairspring under a loupe |
| Texture | The surface the 4K should resolve | brushed-steel bridges, a ruby jewel, oil sheen |
| Motion | What moves, and how | a slow 90-degree orbit, focus easing across the movement |
| Camera | Shot type plus one move | extreme macro, slow orbit |
| Format | Duration and aspect ratio | 8 seconds, 16:9 |
Weak vs strong prompts
Name the texture, the camera, and the motion rather than leaving them to chance.
| Focus | Weak | Strong |
|---|---|---|
| Texture | A close-up of a jacket | Macro of rain beads rolling off a waxed canvas jacket, the weave and wax sheen sharp in 4K |
| Camera | A bear in a river | Telephoto held on a grizzly snapping a salmon from whitewater, spray and wet fur crisp, subtle slow motion |
| Motion and detail | A wide desert shot | Slow crane up to a high wide of a camel caravan crossing rippled dunes, every ridge and figure sharp to the horizon |
Common mistakes
- No texture in the brief: name the surface the resolution is meant to render, or 4K buys you little.
- Vague camera: "cinematic" tells the model nothing; name the shot and the move.
- Static framing for a moving subject: describe the motion, since the model's edge is holding detail through it.
- Too much in one clip: keep one action per clip so the detail has room to read.
FAQs
Yes. As of June 2026, Seedance 2.0 generates at native 4K, a true 3840x2160 frame rather than an upscale of a lower-resolution render. Fine detail comes through with sharp edges and clean texture, and stays crisp through motion rather than only in still frames.
Native. Seedance 2.0 4K renders at full 3840x2160 from the start, so fabric, texture, and fine detail are generated at that resolution instead of interpolated up from 1080p afterward. That holds definition across fast motion and camera moves, not just in single frames.
Work where resolution carries the result: large-format and out-of-home delivery, product and macro detail, film and broadcast finishing, VFX and compositing plates, and texture-rich nature footage. A 4K master also lets you reframe one render into clean 1080p vertical, square, and inset crops.
Yes. Because the master is a full 3840x2160, you can punch in and crop to 1080p vertical, square, or tight inserts and keep clean edges. One 4K generation covers several delivery formats without a separate render for each.
Open Morphic, switch the prompt bar to Video mode, and pick Seedance 2.0. Describe the scene, attach any reference images, clips, or audio, choose 4K and an aspect ratio, then run the prompt. Native audio generates in the same pass.