ByteDancefastText → VideoImage → Video

Seedance 2.0 Fast

bytedance/seedance-2.0-fast

Estimated

$0.40 / 5s @ 720p

Faster variant of Seedance 2.0. Trades some quality for speed while sharing the same multimodal architecture.

Audio Fast 4–12s

Input schema

The exact fields accepted by this model. Values are validated before a generation starts.

promptstringrequired

Text prompt describing the video.

Range: −∞ — 2000

imageimage

Image input for image-to-video. URL or base64 data URI.

durationintegerrequireddefault: 5

Clip length.

Range: 4 — 12

resolutionstringdefault: "720p"

Output resolution.

480p720p1080p

aspect_ratiostringdefault: "16:9"

Ignored when an image is provided.

16:94:31:13:49:1621:99:21

generate_audiobooleandefault: true

Synthesizes synchronized audio.

watermarkbooleandefault: false

Adds a watermark.

seedinteger

Controls reproducibility. Leave empty for a random seed.

Range: 0 — +∞

{
  "duration": 5,
  "resolution": "720p",
  "aspect_ratio": "16:9",
  "generate_audio": true,
  "watermark": false
}

Seedance 2.0

Seedance 2.0 Mini