ReplicateImage to videoComing soon

lightricks/ltx-2.5-fast

Name: lightricks/ltx-2.5-fast
Brand: Replicate

lightricks/ltx-2.5-fast is an image to video tool from Replicate 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

resolution: 720p $0.039, 1080p (default) $0.078, 2k $0.156, 4k $0.312 per second. Billed on duration, default 6.

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
`prompt` required	text	—	Text prompt describing the video to generate
`fps`	JSON	25	Frame rate in frames per second
`image`	URL or file	null	First frame image for image-to-video generation
`duration`	JSON	6	Duration of the video in seconds. Durations longer than 10 seconds are only available at 720p or 1080p resolution with 24 or 25 FPS. 48/50 FPS caps at 10 seconds.
`resolution`	JSON	1080p	Resolution quality of the generated video. Higher resolutions cap the maximum duration.
`aspect_ratio`	JSON	16:9	Aspect ratio of the generated video
`generate_audio`	true or false	true	Generate audio for the video. Used for text_to_video and image_to_video tasks.
`last_frame_image`	text	null	Last frame image for image-to-video generation. When provided, the video interpolates between the first frame and this last frame.

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": "replicate",
    "model": "lightricks/ltx-2.5-fast",
    "input": {
      "prompt": "<prompt>"
    }
  }'