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Video ByteDance · 2026-02

Seedance 2.0 API

ByteDance video model: 4-15 s clips up to 4K with generated speech and music

480p$0.157per second
720p$0.338per second
1080p$0.842per second
4K$1.72per second

Failed generations are not charged. Prices exclude taxes. Billed from your prepaid USD balance.

Exact cost for your settings →

Examples

What Seedance 2.0 can do

I2V prompt: A girl hangs laundry gracefully. After finishing, she takes another piece of clothing from the bucket and…

Official examples from the model vendor: ByteDance.

Seedance 2.0 is ByteDance's February 2026 video model. It generates 4-15 second clips at 480p, 720p, 1080p or 4K, with optional generated speech, sound effects and music. The mode depends on what you send: text only, 1-9 images, a first and last frame, or up to 3 reference clips plus 3 reference audio tracks. Setting duration to -1 lets the model choose the length. Prompts can be up to 20,000 characters, though under 500 is recommended.

Best for

  • Short ads and social clips with dialogue and sound in one pass
  • Animating a product photo or character art
  • Transitions between a defined first and last frame
  • Matching the motion or rhythm of a reference clip

Prompting tips

  • Use shot language: shot size, camera move and pace, for example "slow dolly-in, medium close-up".
  • Put dialogue in quotes and say who speaks; describe sound effects and music mood separately.
  • With 1-2 images the model animates from them, while 3 or more act as references, so decide which behavior you want.
  • Reference audio tracks (2-15 s each) need an image or clip in the same request.

FAQ

How much does the Seedance 2.0 API cost?

Seedance 2.0 costs from $0.157 per second. Reference clips are billed on top of the output, the estimate is returned before the job starts, and failed generations are not charged.

What is the maximum length and resolution of Seedance 2.0?

Clips run 4-15 seconds at up to 4K. With duration: -1 the model picks the length, and the cost estimate assumes 15 seconds.

Seedance 2.0 or Seedance 2.5?

Seedance 2.5 extends clips to 30 seconds, takes up to 30 reference images and can edit or extend a video, but stops at 1080p. Seedance 2.0 is the one with a 4K option.

How to call Seedance 2.0 via API

curl https://jantaris.com/v1/generate?wait=60 \
  -H "Authorization: Bearer $JANTARIS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "seedance-2.0",
  "input": {
    "prompt": "A slow dolly shot through a neon-lit night market in the rain, reflections on wet asphalt, cinematic",
    "aspect_ratio": "adaptive",
    "resolution": "720p",
    "duration": 5
  }
}'

Parameters

ParameterTypeAllowedDefault
prompt *string≤ 20000 chars
aspect_ratiostring16:9 9:16 1:1 4:3 3:4 21:9 adaptiveadaptive
resolutionstring480p 720p 1080p 4k720p
durationinteger4-155
generate_audiobooleantrue
image_urlstring
end_image_urlstring
image_urlsarraymax 9
video_urlsarraymax 3
audio_urlsarraymax 3

The same schema is available from GET /v1/models/seedance-2.0.