Seedance 2.0 Fast
Faster Seedance 2.0 variant with the same multimodal capabilities
Try it
Leave empty for random
You can fill this in now — signing in happens when you run it, and your inputs come with you.
How to use Seedance 2.0 Fast
- Fill in Reference audio（max 3, total ≤15s) in the form on this page, and pick the task to run.
- Adjust anything in the parameter table below — the defaults are the platform's recommended values.
- Run it; signing in starts the charge, and the result (Text to video) appears above the form, ready to download.
Use it from the API
The same run, as a request. Send your API key as a bearer token; poll the returned request_uid until it is done.
curl -X POST https://api.melunox.com/v1/ai/async/tasks \
-H "Authorization: Bearer $WISAVEN_API_KEY" \
-H "X-App-Id: wisaven" -H "Content-Type: application/json" \
-d '{
"model": "seedance-2-fast",
"task": "text-to-video",
"input": {
"audio_urls": "https://…",
"video_urls": "https://…",
"image_urls": "https://…",
"end_image_url": "https://…"
}
}'At a glance
- Developer
- ByteDance Seed
- Can do
- Text to video, Image to video, Reference to video
- Credits per run
- 6 credits
- Typical time
- ~60s
- Added
- 2026-08-11
Parameters
What the model takes. The form above is generated from exactly this list, and the API accepts the same field names.
| Parameter | Type | Default | Range / options |
|---|---|---|---|
audio_urlsReference audio（max 3, total ≤15s) | Audio upload | — | ≤ 3 |
video_urlsReference video（max 3, total 2-15s) | Video upload | — | ≤ 3 |
image_urlsReference image（max 9) | Image upload | — | ≤ 9 |
end_image_urlEnd image (optional) | Image upload | — | — |
image_urlrequiredStart image | Image upload | — | — |
promptPrompt | Long text | — | — |
aspect_ratioAspect ratio | Choice | auto | auto · 21:9 · 16:9 · 4:3 · 1:1 · 3:4 · 9:16 |
resolutionResolution | Choice | 720p | 480p · 720p |
durationDuration (seconds) | Range | 5 | 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 |
seedSeed | Number | — | — |
generate_audioGenerate audio | On / off | No | — |
What Seedance 2.0 Fast costs
Seedance 2.0 Fast costs about 6 credits a run, usually back in around 60 seconds. Credits are shared across every workspace, new accounts start with free ones, and a failed run is refunded.
Seedance 2.0 Fast compared with other Video models
Same workspace, different trade-offs — credits, speed and what each one can be asked for.
| AI models | Can do | Credits per run | Typical time |
|---|---|---|---|
| Seedance 2.0 Fast | Text to video, Image to video, Reference to video | 6 | ~60s |
| Seedance 1.5 Pro | Text to video, Image to video | 3 | ~120s |
| Happyhorse 1.0 | Text to video, Image to video, Reference to video, Video editing, Motion control | 4 | ~60s |
| Wan 2.7 | Text to video, Image to video, First & last frame to video, Reference to video, Video editing | 4 | ~240s |
| Wan 2.6 | Text to video, Image to video, Reference to video | 5 | ~300s |
Questions
What can Seedance 2.0 Fast do?
Text to video, Image to video, Reference to video. Fill in the parameters on this page to try it.
How many credits does Seedance 2.0 Fast cost?
About 6 credits per run, charged at the platform's live price when you run it. One credit balance covers every workspace.
How long does it take?
Around 60 seconds; heavier settings or a queue take longer, and the page shows progress.
Do I need an account, and who owns the output?
Browsing and filling in the form need no account; running it does (new accounts start with free credits). What you generate is yours, personally or commercially, subject to the terms.
Other models like this
Where this model is used: Video·All models