falVideo to videoComing soon

fal-ai/kling-video/o3/4k/video-to-video/reference

Name: fal-ai/kling-video/o3/4k/video-to-video/reference
Brand: fal

fal-ai/kling-video/o3/4k/video-to-video/reference is a video 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: 3 $1.638, 4 $2.184, 5 $2.73, 6 $3.276, 7 $3.822, 8 $4.368, 9 $4.914, 10 $5.46, 11 $6.006, 12 $6.552, 13 $7.098, 14 $7.644, 15 $8.19, otherwise $8.19 per run. The final charge comes from usage.

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

Field	Kind	Default	Description
`prompt` required	text	—	Text prompt for video generation. Reference video as @Video1.
`video_url` required	URL or file	—	Reference video URL. Only .mp4/.mov formats, 3-15s duration, 720-3840px resolution, max 200MB.
`image_urls`	URLs or files	—	Reference images for style/appearance. Reference in prompt as @Image1, @Image2, etc. Maximum 4 total (elements + reference images) when using video.
`keep_audio`	true or false	true	Whether to keep the original audio from the reference video.
`elements`	JSON	—	Elements (characters/objects) to include. Reference in prompt as @Element1, @Element2.
`shot_type`	text	customize	The type of multi-shot video generation.
`aspect_ratio`	one of auto, 16:9, 9:16, 1:1	auto	Aspect ratio.
`duration`	one of 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15	—	Video duration in seconds (3-15s for reference 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/kling-video/o3/4k/video-to-video/reference",
    "input": {
      "prompt": "Integrate @Element1 in the scene. Style video should be following watercolor style of @Image1",
      "video_url": "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/video_reference.mp4"
    }
  }'