GET

/v1/schemas/fal/video/fal-ai/wan-25-preview/image-to-video

kind inputactivity videohash 13a2a00c…extracted Aug 10, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.
Source trace
076d1fb09cbf7a4be391722fe3aa4106aced3b2b6c358002ee4e27fada811c92
{
  "fetchedAt": 1786338105,
  "extractorVersion": "1",
  "verifiedAt": null
}

Request body

9 properties · 2 required · 0 $defs
propertytypedescriptionconstraints
prompt*stringThe text prompt describing the desired video motion. Max 1500 characters.length ≥ 1
image_url*stringURL of the image to use as the first frame. Must be publicly accessible or base64 data URI.
enable_prompt_expansionbooleanWhether to enable prompt rewriting using LLM.default: true
seedintegerRandom seed for reproducibility. If None, a random seed is chosen.nullable
resolutionenumVideo resolution. Valid values: 480p, 720p, 1080p480p | 720p | 1080p · default: "1080p"
audio_urlstring URL of the audio to use as the background music. Must be publicly accessible. Limit handling: If the audio duration exceeds the duration value (5 or 10 seconds), the audio is truncated to the first 5 or 10 seconds, and the rest is discarded. If the audio is shorter than the video, the remaining part of the video will be silent. For example, if the audio is 3 seconds long and the video duration is 5 seconds, the first 3 seconds of the output video will have sound, and the last 2 seconds will be silent. - Format: WAV, MP3. - Duration: 3 to 30 s. - File size: Up to 15 MB. nullable
enable_safety_checkerbooleanIf set to true, the safety checker will be enabled. Disabling it requires account authorization; unauthorized requests are always checked.default: true
durationenumDuration of the generated video in seconds. Choose between 5 or 10 seconds.5 | 10 · default: "5"
negative_promptstringNegative prompt to describe content to avoid. Max 500 characters.nullable

Validate a payload

before you spend tokens
shell
$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/wan-25-preview/image-to-video","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}