GET

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

kind inputactivity videohash f151b022…extracted Jul 6, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.
Source trace
6b99081ac7fdd742761d0c84e2e3795f2e0a379dd5ba7fc9d6e5f8bc9db06e7e
{
  "fetchedAt": 1783331098,
  "extractorVersion": "1",
  "verifiedAt": null
}

Request body

31 properties · 3 required · 2 $defs
propertytypedescriptionconstraints
loras*LoRAInput[]The LoRAs to use for the generation.
prompt*stringThe prompt to generate the video from.
video_url*stringThe URL of the video to generate the video from.
enable_prompt_expansionbooleanWhether to enable prompt expansion.default: true
audio_urlstringAn optional URL of an audio to use as the audio for the video. If not provided, any audio present in the input video will be used.nullable
preprocessorenumThe preprocessor to use for the video. When a preprocessor is used and `ic_lora_type` is set to `match_preprocessor`, the IC-LoRA will be loaded based on the preprocessor type.depth | canny | pose | none · default: "none"
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
end_image_urlstringThe URL of the image to use as the end of the video.nullable
video_sizeImageSize | enumThe size of the generated video.default: "auto"
video_output_typeenumThe output type of the generated video.X264 (.mp4) | VP9 (.webm) | PRORES4444 (.mov) | GIF (.gif) · default: "X264 (.mp4)"
match_video_lengthbooleanWhen enabled, the number of frames will be calculated based on the video duration and FPS. When disabled, use the specified num_frames.default: true
video_qualityenumThe quality of the generated video.low | medium | high | maximum · default: "high"
seedintegerThe seed for the random number generator.nullable
ic_lora_scalenumberThe scale of the IC-LoRA to use. This allows you to control the strength of the IC-LoRA.0 ≤ n ≤ 1 · default: 1
negative_promptstringThe negative prompt to generate the video from.default: "blurry, out of focus, overexpos…
image_strengthnumberThe strength of the image to use for the video generation.0 ≤ n ≤ 1 · default: 1
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"
match_input_fpsbooleanWhen true, match the output FPS to the input video's FPS instead of using the default target FPS.default: true
enable_safety_checkerbooleanWhether to enable the safety checker.default: true
end_image_strengthnumberThe strength of the end image to use for the video generation.0 ≤ n ≤ 1 · default: 1
accelerationenumThe acceleration level to use.none | regular | high | full · default: "none"
generate_audiobooleanWhether to generate audio for the video.default: true
video_strengthnumberVideo conditioning strength. Lower values represent more freedom given to the model to change the video content.0 ≤ n ≤ 1 · default: 1
fpsnumberThe frames per second of the generated video.1 ≤ n ≤ 60 · default: 25
image_urlstringAn optional URL of an image to use as the first frame of the video.nullable
ic_loraenumThe type of IC-LoRA to load. In-Context LoRA weights are used to condition the video based on edge, depth, or pose videos. Only change this from `match_preprocessor` if your videos are already preprocessed (or you are using the detailer.)match_preprocessor | canny | depth | pose | detailer | none · default: "match_preprocessor"
audio_strengthnumberAudio conditioning strength. Lower values represent more freedom given to the model to change the audio content.0 ≤ n ≤ 1 · default: 1
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

2 $defs

ImageSizeobject

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

LoRAInputobject

LoRA weight configuration.

path*stringURL, HuggingFace repo ID (owner/repo) to lora weights.
weight_namestringName of the LoRA weight. Only used if `path` is a HuggingFace repository, and is only required when the repository contains multiple LoRA weights.nullable
scalenumberScale factor for LoRA application (0.0 to 4.0).0 ≤ n ≤ 4 · default: 1

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/video-to-video/lora","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}