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falAudio to videoComing soon

lightricks/ltx-2.5/audio-to-video/fast

lightricks/ltx-2.5/audio-to-video/fast is an audio to video tool from fal that runs in the background and returns video. Coming soon: listed with its price, not yet open to runs.

This tool is listed but not yet available to run.

Price pending

Pricing

Price pending.

Limits

Runs
In the background
Returns
video
Longest queue wait
3600s
Run deadline
1800s
Largest inline input
1024 KB
Largest input file
500 MB
Largest output
4768 MB
Outputs per run
16

Input

FieldKindDefaultDescription
audio_url requiredURL or file—URL of the audio file to generate a video from. Duration must be between 2 and 20 seconds; pro models support a maximum of 10 seconds. Must be publicly accessible or base64 data URI.
image_urlURL or file—URL of an image to use as the first frame of the video. If not provided, prompt is required.
prompttext—Text description of how the video should be generated. Required if image_url is not provided. When image_url is provided, this describes how the image should be animated.
aspect_ratioone of
auto, 16:9, 9:16
autoThe aspect ratio of the generated video. If 'auto', the aspect ratio will be determined automatically based on the input image, or defaults to 16:9 if no image is provided.

Same request in code

curl https://api.spiral.ai/v1/runs \
  -H "Authorization: Bearer $SPIRAL_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
    "provider": "fal",
    "model": "lightricks/ltx-2.5/audio-to-video/fast",
    "input": {
      "audio_url": "https://v3b.fal.media/files/b/0a90dfe7/3a-DUXzO79XWIYwUDfHZX_output.mp3"
    }
  }'