falVideo to videoComing soon

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

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

$0.546 per second. Measured from the input file. 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

FieldKindDefaultDescription
prompt requiredtext—Text prompt for video generation. Reference video as @Video1.
video_url requiredURL or file—Reference video URL. Only .mp4/.mov formats, 3-15s duration, 720-3840px resolution, max 200MB.
image_urlsURLs or files—Reference images for style/appearance. Reference in prompt as @Image1, @Image2, etc. Maximum 4 total (elements + reference images) when using video.
keep_audiotrue or falsetrueWhether to keep the original audio from the reference video.
elementsJSON—Elements (characters/objects) to include. Reference in prompt as @Element1, @Element2.
shot_typetextcustomizeThe type of multi-shot video generation.

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/edit",
    "input": {
      "prompt": "Change environment to be fully snow as @Image1. Replace animal with @Element1",
      "video_url": "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-edit/video_reference.mp4"
    }
  }'