GET

/v1/schemas/fal/video/minimax/h3-max-turbo/image-to-video

kind inputactivity videohash bbdcdcb3…extracted Nov 7, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.

upstream-spec

Source trace
14f48610142650a3a5e9accf3551051a79a74abf315c73597ea68bcad8ced831
{
  "fetchedAt": 1794027603,
  "extractorVersion": "1",
  "verifiedAt": null
}

Request body

10 properties · 2 required · 0 $defs
propertytypedescriptionconstraints
prompt*stringText prompt for video generationlength ≥ 1 · length ≤ 50000
prompt_expansion_mode*stringHow much effort to spend rewriting the prompt before generation. 'disabled' skips prompt expansion. 'balanced' returns in about a second. 'quality' spends up to ~30s on a richer prompt.default: "balanced"
sync_modebooleanReturn the generated video as base64 instead of a CDN URL.default: false
seedintegerRandom seed. A random seed is selected when omitted.nullable
enable_safety_checkerbooleanIf set to true, the safety checker will be enabled.default: true
target_audio_urlstringOptional URL of an audio clip at least 2 seconds long (maximum 15 MB) to pin to the generated soundtrack. Longer clips are trimmed to the generated video's length, keeping the beginning. The original audio replaces the output soundtrack, padded with silence if shorter than the video, without changing playback speed. Exceptionally high sample rates may be resampled to 96 kHz. Accepts an HTTP(S) URL or a base64 data URI.length ≥ 1 · nullable
image_urlstringOptional URL of the image to use as the first frame. When provided, the output canvas follows this image. If only end_image_url is provided, the canvas follows that last frame instead. If both images are omitted, the request is handled as text-to-video (16:9 by default).nullable
durationnumberVideo length in seconds. The output can run up to about 0.7 s longer than requested. Use at least 2 s with target_audio_url.0.92 ≤ n ≤ 15 · default: 5
resolutionenumThe native generation resolution, or 1080P latent refinement from a native 768P source.480P | 768P | 1080P · default: "768P"
end_image_urlstringOptional URL of the image to use as the last frame. It may be provided alone for end-only keyframe generation; in that case the output canvas follows this image.nullable

Validate a payload

before you spend tokens
shell
$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"minimax/h3-max-turbo/image-to-video","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}