GET

/v1/schemas/fal/video/fal-ai/ltx-2-19b/distilled/text-to-video

kind inputactivity videohash 63cb007a…extracted Jul 6, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.
Source trace
9af65e8f2dcc5b43956aca0c54d97920bd2313ca66d9517a266e3a790b045562
{
  "fetchedAt": 1783330412,
  "extractorVersion": "1",
  "verifiedAt": null
}

Request body

17 properties · 1 required · 1 $defs
propertytypedescriptionconstraints
prompt*stringThe prompt to generate the video from.
enable_prompt_expansionbooleanWhether to enable prompt expansion.default: true
enable_safety_checkerbooleanWhether to enable the safety checker.default: true
camera_lora_scalenumberThe scale of the camera LoRA to use. This allows you to control the camera movement of the generated video more accurately than just prompting the model to move the camera.0 ≤ n ≤ 1 · default: 1
video_sizeImageSize | enumThe size of the generated video.default: "landscape_4_3"
video_output_typeenumThe output type of the generated video.X264 (.mp4) | VP9 (.webm) | PRORES4444 (.mov) | GIF (.gif) · default: "X264 (.mp4)"
video_qualityenumThe quality of the generated video.low | medium | high | maximum · default: "high"
accelerationenumThe acceleration level to use.none | regular | high | full · default: "none"
generate_audiobooleanWhether to generate audio for the video.default: true
seedintegerThe seed for the random number generator.nullable
fpsnumberThe frames per second of the generated video.1 ≤ n ≤ 60 · default: 25
negative_promptstringThe negative prompt to generate the video from.default: "blurry, out of focus, overexpos…
camera_loraenumThe camera LoRA to use. This allows you to control the camera movement of the generated video more accurately than just prompting the model to move the camera.dolly_in | dolly_out | dolly_left | dolly_right | jib_up | jib_down · +2 more · default: "none"
use_multiscalebooleanWhether to use multi-scale generation. If True, the model will generate the video at a smaller scale first, then use the smaller video to guide the generation of a video at or above your requested size. This results in better coherence and details.default: true
video_write_modeenumThe write mode of the generated video.fast | balanced | small · default: "balanced"
sync_modebooleanIf `True`, the media will be returned as a data URI and the output data won't be available in the request history.default: false
num_framesintegerThe number of frames to generate.9 ≤ n ≤ 481 · default: 121

Types

1 $defs

ImageSizeobject

heightintegerThe height of the generated image.0 < n ≤ 14142 · default: 512
widthintegerThe width of the generated image.0 < n ≤ 14142 · default: 512

Validate a payload

before you spend tokens
shell
$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/ltx-2-19b/distilled/text-to-video","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}