GET

/v1/schemas/fal/video/bytedance/seedance-2.0/us/reference-to-video

kind inputactivity videohash 48701b34…extracted Oct 22, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.

upstream-spec

Source trace
29095d02b003ef3561a16ee96ec42ff6fdc300607a6f38ab31cd6ba57e769f98
{
  "fetchedAt": 1792645225,
  "extractorVersion": "1",
  "verifiedAt": null
}

Request body

11 properties · 1 required · 0 $defs
propertytypedescriptionconstraints
prompt*stringThe text prompt used to generate the video.
resolutionenumVideo resolution - 480p for faster generation, 720p for balance, 1080p for high quality, 4k for highest quality.480p | 720p | 1080p | 4k · default: "720p"
bitrate_modeenumOutput bitrate mode. 'high' requests a higher-quality, larger-file encode from the model; 'standard' uses the default bitrate.standard | high · default: "standard"
aspect_ratioenumThe aspect ratio of the generated video. Use 16:9 for landscape, 9:16 for portrait/vertical, 1:1 for square, 21:9 for ultrawide cinematic, or auto to let the model decide.auto | 21:9 | 16:9 | 4:3 | 1:1 | 3:4 · +1 more · default: "auto"
codecenum'auto' retains default video codec behaviour; 'H264' uses H.264; 'H265' uses H.265.auto | H264 | H265 · default: "auto"
image_urlsstring[]Reference images to guide video generation. Refer to them in the prompt as @Image1, @Image2, etc. Supported formats: JPEG, PNG, WebP, BMP, TIFF, GIF, HEIC, HEIF. Max 30 MB per image. Up to 9 images. Total files across all modalities must not exceed 12.items ≤ 9
video_urlsstring[]Reference videos to guide video generation. Refer to them in the prompt as @Video1, @Video2, etc. Supported formats: MP4, MOV. Up to 3 videos, combined duration must be between 2 and 15 seconds, total size under 50 MB. Each video must be between ~480p (640x640…items ≤ 3
generate_audiobooleanWhether to generate synchronized audio for the video, including sound effects, ambient sounds, and lip-synced speech. The cost of video generation is the same regardless of whether audio is generated or not.default: true
end_user_idstringThe unique user ID of the end user.nullable
audio_urlsstring[]Reference audio to guide video generation. Refer to them in the prompt as @Audio1, @Audio2, etc. Supported formats: MP3, WAV. Up to 3 files, combined duration must not exceed 15 seconds. Max 15 MB per file. At least one reference image or video is required.items ≤ 3
durationenumDuration of the video in seconds. Supports 4 to 15 seconds, or auto to let the model decide based on the prompt.auto | 4 | 5 | 6 | 7 | 8 · +7 more · default: "auto"

Validate a payload

before you spend tokens
shell
$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"bytedance/seedance-2.0/us/reference-to-video","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}