GET

/v1/schemas/fal/video/bytedance/seedance-2.5/us/reference-to-video

kind inputactivity videohash bfb38451…extracted Nov 3, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.

upstream-spec

Source trace
a631583aa474103cc548eeb687af368317c4dbf94d825a30c3de230bfde752d3
{
  "fetchedAt": 1793682002,
  "extractorVersion": "1",
  "verifiedAt": null
}

Request body

14 properties · 0 required · 0 $defs
propertytypedescriptionconstraints
codecenum'auto' retains default video codec behaviour; 'H264' uses H.264; 'H265' uses H.265.auto | H264 | H265 · default: "auto"
bitrate_modeenumOutput bitrate mode. 'high' requests a higher-quality, larger-file encode from the model; 'standard' uses the default bitrate.standard | high · default: "standard"
taskenumThe type of video generation task. Reference uses the supplied media as guidance. Editing modifies a reference video and automatically coerces aspect_ratio and duration to auto. Extension continues a reference video and automatically coerces aspect_ratio to au…auto | reference | editing | extension · default: "reference"
video_urlsstring[]Reference videos to guide video generation. Refer to them in the prompt as @Video1, @Video2, etc. Supported formats: MP4, MOV. Up to 10 videos. Each video must be 1.8 to 30.2 seconds and no larger than 200 MB; combined duration must not exceed 30.2 seconds. Di…
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
draftbooleanGenerate a draft preview at 480p, overriding resolution. Returns a draft_id for completing the draft at 1080p within 7 days.default: false
seedintegerRandom seed for reproducibility. Note that results may still vary slightly even with the same seed.nullable
promptstringThe text prompt used to generate the video.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 10 files. Each file must be 1.8 to 30.2 seconds and no larger than 15 MB; combined duration must not exceed 30.2 seconds.
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"
durationenumDuration of the video in seconds. Supports 4 to 30 seconds, or auto to let the model decide based on the prompt.auto | 4 | 5 | 6 | 7 | 8 · +22 more · default: "auto"
end_user_idstringThe unique user ID of the end user.nullable
resolutionenumVideo resolution - 480p for faster generation, 720p for balance, 1080p for high quality.480p | 720p | 1080p · default: "720p"
image_urlsstring[]Reference images to guide video generation. Refer to them in the prompt as @Image1, @Image2, etc. Supported formats: JPG, PNG, WebP, BMP, TIFF, GIF, HEIC, HEIF. Max 30 MB per image. Up to 30 images. Total files across all modalities must not exceed 50.

Validate a payload

before you spend tokens
shell
$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"bytedance/seedance-2.5/us/reference-to-video","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}