GET
/v1/schemas/fal/video/bytedance%2Fseedance-2.0%2Ffast%2Fimage-to-video
Accept:
Request body
9 properties · 2 required · 0 $defs| property | type | description | constraints |
|---|---|---|---|
| prompt* | string | The text prompt describing the desired motion and action for the video. | |
| image_url* | string | The URL of the starting frame image to animate. Supported formats: JPEG, PNG, WebP. Max 30 MB. | |
| end_user_id | string | The unique user ID of the end user. | nullable |
| end_image_url | string | The URL of the image to use as the last frame of the video. When provided, the generated video will transition from the starting image to this ending image. Supported formats: JPEG, PNG, WebP. Max 30 MB. | nullable |
| duration | enum | Duration 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" |
| aspect_ratio | enum | The 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 infer from the input image. | auto | 21:9 | 16:9 | 4:3 | 1:1 | 3:4 · +1 more · default: "auto" |
| generate_audio | boolean | Whether 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 |
| resolution | enum | Video resolution - 480p for faster generation, 720p for balance. | 480p | 720p · default: "720p" |
| bitrate_mode | enum | Output bitrate mode. 'high' requests a higher-quality, larger-file encode from the model; 'standard' uses the default bitrate. | standard | high · default: "standard" |
Validate a payload
before you spend tokensshell
$ curl -X POST https://modelschemas.com/v1/validate \
-d '{"provider":"fal","endpointId":"bytedance/seedance-2.0/fast/image-to-video","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}