GET

/v1/schemas/fal/video/bytedance%2Fseedance-2.0%2Ffast%2Ftext-to-video

kind inputactivity videohash aded9941extracted Jul 6, 2026version currentsource upstream spec ↗

Request body

7 properties · 1 required · 0 $defs
propertytypedescriptionconstraints
prompt*stringThe text prompt used to generate the video
end_user_idstringThe unique user ID of the end user.nullable
resolutionenumVideo resolution - 480p for faster generation, 720p for balance.480p | 720p · default: "720p"
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"
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"
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

Validate a payload

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