Models
The Seedance line, through one API.
Four models share one request format and one balance. Pick by the job: explore cheaply, iterate quickly, produce reliably, finish with the newest model.
Compare
Which model for which job.
Most teams draft on Mini or Fast and render the approved version on 2.0 or 2.5. Switching is one field.
| Model ID | Use it for | Trade-off | Typical settings |
|---|---|---|---|
seedance-2.0-mini | Storyboards, prompt tests, bulk drafts | Lowest cost per second; use it to find the shot, not to deliver it | 480p · 5 s · audio off |
seedance-2.0-fast | Iterating on framing, motion and timing | Faster turnaround than 2.0 at a lower rate | 480p–720p · 5–8 s |
seedance-2.0 | Ads, social clips, product video | The workhorse: full multimodal references and native audio | 720p · 8–15 s · audio on |
seedance-2.5 | Hero shots and final renders | Newest model in the line; highest rate | 720p · length to fit the edit |
Model IDs are GotoRamp's own and stay stable when the underlying model version changes; we announce every change in advance. Per-model limits (resolutions, reference counts, audio) are listed in the API reference.
Capabilities
What the Seedance 2.0 line can do.
Every mode below runs through the same endpoint. You choose it by what you attach to the request.
Text to video
Describe the subject, action, camera and mood. The model returns a clip at the length and format you ask for.
Image to video
Animate a packshot, a keyframe or a still. Add a last frame to control where the shot lands.
Multimodal references
Attach reference images, short video clips and audio to steer identity, motion, camera language and timing.
Native audio
Ambient sound, effects and music generated with the picture, in sync. Turn it off when you score in the edit.
Six aspect ratios
21:9, 16:9, 4:3, 1:1, 3:4 and 9:16, so one prompt covers cinema, feed, story and marketplace placements.
4 to 15 seconds
Set the duration per job. Billing follows the seconds returned, so a 5-second draft costs a third of a 15-second render.
Switching models
Draft on Mini, deliver on 2.5.
Keep the prompt and references; change the model and resolution. Nothing else in your code moves.
Outputs from different models won't be frame-identical. Treat the draft as direction, then approve the final render.
PROMPT = "Rattan lounge chair turning on a white sweep, soft studio shadow"
draft = {"model": "seedance-2.0-mini", "prompt": PROMPT, "duration": 5,
"metadata": {"resolution": "480p", "generate_audio": False}}
final = {**draft, "model": "seedance-2.5", "duration": 12,
"metadata": {"resolution": "720p", "ratio": "1:1"}}Start with a small balance. Scale when it works.
We're onboarding early-access accounts in small batches. Tell us what you're making; we reply within one business day.