falImage to videoComing soon

fal-ai/ltx-2.3/image-to-video/fast

Name: fal-ai/ltx-2.3/image-to-video/fast
Brand: fal

fal-ai/ltx-2.3/image-to-video/fast is an image 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.

Priced by usage

Pricing

duration: 6 (default) $0.468, 8 $0.624, 10 $0.78, 12 $0.936, 14 $1.092, 16 $1.248, 18 $1.404, 20 $1.56, otherwise $1.56 per run. The final charge comes from usage.

Limits

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

Input

Field	Kind	Default	Description
`image_url` required	URL or file	—	URL of the image to generate the video from. Must be publicly accessible or base64 data URI. Supports PNG, JPEG, WebP, AVIF, and HEIF formats.
`end_image_url`	URL or file	—	The URL of the end image to use for the generated video. When provided, generates a transition video between start and end frames.
`prompt` required	text	—	The prompt to generate the video from
`duration`	one of 6, 8, 10, 12, 14, 16, 18, 20	6	The duration of the generated video in seconds. The fast model supports 6-20 seconds. Note: Durations longer than 10 seconds (12, 14, 16, 18, 20) are only supported with 25 FPS and 1080p resolution.
`resolution`	one of 1080p, 1440p, 2160p	1080p	The resolution of the generated video
`aspect_ratio`	one of auto, 16:9, 9:16	auto	The aspect ratio of the generated video
`fps`	one of 24, 25, 48, 50	25	The frames per second of the generated video
`generate_audio`	true or false	true	Whether to generate audio for the generated video

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": "fal-ai/ltx-2.3/image-to-video/fast",
    "input": {
      "image_url": "https://v3b.fal.media/files/b/0a90dd09/SnnnNct-o_zpGVEHDNVQ0_image_049.png",
      "prompt": "Snorkel lens ground-scraping tracking shot following a barefoot Ethiopian long-distance runner training on a dirt road at dawn, camera inches from the ground…"
    }
  }'