Bytedance Seedance 2.0

Model id: bytedance-seedance-2

video Bytedance 54 tokens per second $0.005 per token

Pricing

Option	Tokens	Unit	≈ USD
480p with video input	15	per second	$0.0750
480p no video input	25	per second	$0.1250
720p with video input	33	per second	$0.1650
720p no video input	54	per second	$0.2700
1080p with video input	81	per second	$0.4050
1080p no video input	133	per second	$0.6650
4K with video input	167	per second	$0.8350
4K no video input	271	per second	$1.3550

The price is held when the task is created and settled to actual consumption when it completes; a failed task releases the hold.

How to order

Clips are ordered for a video session of the project; the model id goes into the order and must be one of the project's GET /projects/{id}/video-models.

POST https://app.video-blade.com/api/v1/projects/{id}/video-sessions/{item_id}/generate
X-API-Key: vb_…
Content-Type: application/json

{"prompt": "…", "model": "bytedance-seedance-2", "duration": …, "start_url": "https://…"}
→ 202 {"generation_id": "…", "status": "running", "tokens": …}

Field lists and refusal codes — API reference.

Model parameters

What the model itself understands; the ordering calls above take their own fields and pass these on.

Name	Type	Required	Description
`prompt`	string	optional	The text prompt used to generate the video. Required field. (Min length: 3, Max length: 20000 characters)
`first_frame_url`	string	optional	First frame image url or asset://{assetId} (for example: asset://asset-20260404242101-76djj)
`last_frame_url`	string	optional	End frame image url or asset://{assetId} (for example: asset://asset-20260404242101-76djj)
`reference_image_urls`	array	optional	Enter a list of image URLs or asset://{assetId} (for example: asset://asset-20260404242101-76djj). Single image requirements: Format: jpeg, png, webp, bmp, tiff, gif. Aspect ratio (width/height): (0.4, 2.5) Width and height (px): (300, 6000) Size: Single image less than 30 MB. Maximum number of files: The sum of the number of frames at the beginning and end must not exceed 9..
`reference_video_urls`	array	optional	Enter a list of video URLs or asset://{assetId} (for example: asset://asset-20260404242101-76djj) . Single video requirements: Video format: mp4, mov. Resolution: 480p, 720p Duration: Single video duration [2, 15] s, maximum 3 reference videos, total duration of all videos not exceeding 15 seconds. Dimensions: Aspect ratio (width/height): [0.4, 2.5] Width/height (px): [300, 6000] Total pixels: [640×640=409600, 834×1112=927408], i.e., the product of width and height must meet the range requirement of [409600, 927408]. Size: Single video not exceeding 50 MB. Frame rate (FPS): [24, 60]
`reference_audio_urls`	array	optional	Enter a list of audio URLs or asset://{assetId} (for example: asset://asset-20260404242101-76djj) . Single audio requirements: Format: wav, mp3 Duration: Single audio duration [2, 15] s, maximum 3 reference audios, total duration of all audios not exceeding 15 s. Size: Single audio file size not exceeding 15 MB.
`return_last_frame`	boolean	optional	Whether to return the last frame of the video as an image. Default: `False`
`generate_audio`	boolean	optional	Whether to generate audio for the video. - true: Generate with audio - false: Generate without audio Default: `True`
`resolution`	string	optional	Video resolution - 480p for faster generation, 720p for balance, 1080p for High-quality video, 4K Ultra-High Definition, delivering perfect visual details. Values: `480p`, `720p`, `1080p`, `4k` Default: `720p`
`aspect_ratio`	string	optional	Video aspect ratio configuration. Required field. Values: `1:1`, `4:3`, `3:4`, `16:9`, `9:16`, `21:9`, `adaptive` Default: `16:9`
`duration`	integer	optional	Video duration in 4-15 seconds or -1. Default: `5`
`web_search`	boolean	optional	Use online search
`nsfw_checker`	boolean	optional	Defaults to false. You can set it to false based on your needs. If set to false, our content filtering will be disabled, and all results will be returned directly by the model itself. Note: There is no guarantee that everything can be filtered out; if you are not satisfied with the results, you will need to make your own arrangements.