Seedance 2.0 Fast via the Tokenator API
About Seedance 2.0 Fast
Seedance 2.0 Fast is a video generation model from ByteDance. It supports text-to-video, image-to-video with first and last frame control, and multimodal reference-to-video. It prioritizes generation speed and lower cost over maximum output quality.
Specification
| Full name | Seedance 2.0 Fast |
| API ID | seedance-2.0-fast |
| Model vendor | ByteDance |
| Type | Video generation |
| Clip duration | 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 seconds |
| Resolution | 480p, 720p, 1080p, 4k |
| Aspect ratio | 16:9, 9:16, 1:1, 21:9, 3:4, 4:3 |
| Audio | yes |
| Reference | accepted — you may attach an image, but the model works without one |
| First frame | accepted — you may pin it with your own image |
| Last frame | accepted — you may pin it with your own image |
| Billing | flat, 30 generations per clip: duration, resolution and aspect ratio do not change it |
| Defaults | 5 seconds, 720p, 16:9 |
| Generation time | up to 15 min |
| Supported API formats | /v1/videos/generations |
| Upstream providers | 1 |
| Current status | available |
| Data updated | 2026-08-29 |
Upstream providers
| Provider | Multiplier |
|---|---|
| Sky Nexus API | 1× |
A request goes to the first available provider by priority; if it fails, Tokenator switches to the next one.
Example request
curl https://api.tokenator.top/v1/videos/generations \ -H "Authorization: Bearer sk-your-tokenator-key" \ -H "Content-Type: application/json" \ -d '{ "model": "seedance-2.0-fast", "prompt": "a neon city in the rain, slow camera fly-through", "duration": 5, "resolution": "720p" }'
Compatible tools
The model can be used in any tool that accepts a custom base URL: Claude Code, Codex CLI, OpenCode, Cursor, Cline, Kilo Code, Cherry Studio, OpenClaw.
See also
FAQ about Seedance 2.0 Fast
What is the API ID of Seedance 2.0 Fast?
seedance-2.0-fast — put this into the model field of your request.
How do I request a video?
POST to /v1/videos/generations with model and prompt. The same key and the same base URL as for text models — only the path changes. The answer comes back when the clip is ready, with a link to the mp4 in data[0].url. The full request description, the parameters and curl, Python and Node.js examples are in the video generation documentation.
Which parameters does Seedance 2.0 Fast accept?
prompt — the scene description, duration — 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 seconds, resolution — 480p, 720p, 1080p, 4k, aspect_ratio — 16:9, 9:16, 1:1, 21:9, 3:4, 4:3, generate_audio for sound, frame_images to animate an existing frame. Values outside this list are refused with a clear error, and anything you leave out is filled from the model's defaults.
What does one clip cost?
Video is not billed in tokens but in generations from a video bundle: flat, 30 generations per clip: duration, resolution and aspect ratio do not change it. A 15-second clip costs the same as a 4-second one. The remaining generations are shown in your account and in the key dashboard.
How long does it take?
A render takes from tens of seconds to a few minutes. The connection is held with a keep-alive, and if the model answers with an async job the proxy waits for it and hands back the finished clip — you do not need to poll anything yourself.
What if a render fails?
The claimed generations are refunded automatically — a failed render costs nothing. If it keeps failing, try another aspect ratio or a shorter clip: not every combination is supported by every provider.
Can I try it without writing code?
Yes: the Studio tab in your key dashboard has an Images / Video switch where duration, resolution and aspect ratio are picked with buttons. Video bundles are on sale in your account.