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Workflow Utilities Blend Video

Integrate

Model id workflow-utilities/blend-video
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/workflow-utilities/blend-video?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "top_video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
    "bottom_video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

Up to $3.60 per run charged by actual usage, the rest is refunded Run it on this page

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Utility · Video

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Build a request below and run it with your API key. Outputs are copied to our storage, kept forever or 7 days for free.

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Controls are generated from the model schema. The code and the price update as you change them.

•required
Drop a file, or

URL for the video used as the upper layer.

•required
Drop a file, or

URL for the video used as the lower layer.

Advanced blend_mode · opacity · shortest
default overlay

Blending method used to combine the videos.

default 1

Upper-layer opacity, ranging from 0.0 to 1.0.

POST /run/workflow-utilities/blend-video?wait=20 quote → $3.60
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/workflow-utilities/blend-video?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "top_video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
    "bottom_video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

Run this request

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About Workflow Utilities Blend Video

Combines a top and a bottom video into one using a blend mode such as overlay, multiply, difference or screen-style options (23 modes in total, default overlay). `opacity` sets the top layer strength from 0 to 1. With `shortest` enabled, the output ends when the shorter input ends.

Parameters

NameType DefaultAllowed Description
top_video_urlrequired
Typeurl · video
URL for the video used as the upper layer.
bottom_video_urlrequired
Typeurl · video
URL for the video used as the lower layer.
blend_modeoptional
Typeenum
Defaultoverlay
additionaverageburndarkendifferencedividedodgeexclusiongrainextractgrainmergehardlightlightenmultiplynegationnormaloverlay
+7 morephoenixpinlightreflectscreensoftlightsubtractvividlight
Blending method used to combine the videos.
opacityoptional
Typenumber
Default1
0 – 1
Upper-layer opacity, ranging from 0.0 to 1.0.
shortestoptional
Typeboolean
Defaulttrue
Stops the output as soon as the shortest input finishes.
required

File parameters take a public https:// URL, a data: URI up to 10 MB, or the file_url of an upload. Files

Output

GET /requests/req_8k2m4q7x1z9c3v5b6n0p2r4t
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "workflow-utilities/blend-video",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 3600,
    "usd": "3.60",
    "charged": 3600,
    "refunded": 0
  },
  "input": {
    "top_video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
    "bottom_video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  },
  "output": {
    "video": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_name": "0-output.mp4",
      "file_size": 1843200
    }
  },
  "outputs": [
    {
      "type": "video",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_size": 1843200,
      "width": 1280,
      "height": 720,
      "duration": 5,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
Your files, your choiceEvery outputs[].url is a copy on our storage: kept forever (paid per GB-month) or 7 days for free, by your account setting or ?storage=.
Same shape on every modeltype, url, content_type, width, height and duration, for images, video and audio alike. output is the model’s own result object.
Fields of output
video
object {url, content_type, file_name, file_size}Video produced by blending the inputs.

More models: Video to Video

For AI agents: this page as Markdown is at https://doitong.com/en-US/developers/models/workflow-utilities/blend-video.md. All models and guides: https://doitong.com/developers/llms.txt