Pixverse Swap

Pixverse Swap

Playground

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PixVerse Swap replaces backgrounds, people, and objects directly inside existing videos for quick scene changes and creative edits with natural-looking results. Ready-to-use REST inference API, best performance, no cold starts, affordable pricing.

Features

PixVerse Swap — Video Swap Model

PixVerse Swap generates high-quality video clips by swapping the person, objects, or background of a source video using a reference image. It preserves the original motion, timing, and camera work while replacing the visual target with the new look from the image.

What it does

  • Takes a source video (performance, camera motion, timing).
  • Takes a reference image (new person, object, or background).
  • Replaces the selected target in the video with the content from the image.
  • Keeps motion, expressions, and framing consistent so the edit feels natural.

Ideal for:

  • Turning talking-head videos into stylized or character performances
  • Swapping outfits, props, or featured products
  • Dropping your subject into new scenes without reshooting

Inputs and Controls

  • video (required) Source clip whose motion, expressions, and timing you want to keep.

  • image (required) Reference image that defines the new person, object, or background.

  • resolution

    • 360p
    • 540p
    • 720p
  • mode

    • person – Replace the main person in the video with the person or character from the image.
    • object – Replace a key object (for example, smartphone, product, prop) with the object in the image.
    • background – Keep the subject but replace the scene behind them using the reference image.

Pricing

ResolutionSwap price per second
360p$0.090
540p$0.090
720p$0.120
  • P.S: $0.020 per request for mask selection (charged once per job).

How to Use

  1. Upload or paste the URL of your source video.

  2. Upload or paste the URL of the reference image that contains the new person, object, or background.

  3. Choose the resolution (360p, 540p, or 720p) according to your quality and cost needs.

  4. Select the mode:

    • person for full character swap,
    • object for prop/product replacement,
    • background to move your subject into a different environment.
  5. Click Run and wait for the processed video to appear in the preview panel.

  6. Review the result and download if you are satisfied.

Notes

  • An uploaded video in supported formats (mp4, mov)
  • Max resolution: 1920
  • Max file size: 50MB
  • Max duration: 30 seconds

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result


# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/pixverse/swap" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "resolution": "720p",
    "mode": "person"
}'

# Get the result
curl --location --request GET "https://api.wavespeed.ai/api/v3/predictions/${requestId}/result" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}"

Parameters

Task Submission Parameters

Request Parameters

ParameterTypeRequiredDefaultRangeDescription
videostringYes-The video to be swapped.
imagestringYes-The model generates video with the picture passed in as the first frame.Base64 encoded strings in data:image/jpeg; base64,{data} format for incoming images, or URLs accessible via the public network. The uploaded image needs to meet the following conditions: Format is JPG/JPEG/PNG; The aspect ratio is greater than 2:5 and less than 5:2; Short side pixels greater than 300px; The image file size cannot exceed 20MB.
resolutionstringNo720p360p, 540p, 720pVideo quality (360p/540p/720p).
modestringNopersonperson, object, backgroundThe swap mode to use Default value: person

Response Parameters

ParameterTypeDescription
codeintegerHTTP status code (e.g., 200 for success)
messagestringStatus message (e.g., “success”)
data.idstringUnique identifier for the prediction, Task Id
data.modelstringModel ID used for the prediction
data.outputsarrayArray of URLs to the generated content (empty when status is not completed)
data.urlsobjectObject containing related API endpoints
data.urls.getstringURL to retrieve the prediction result
data.has_nsfw_contentsarrayArray of boolean values indicating NSFW detection for each output
data.statusstringStatus of the task: created, processing, completed, or failed
data.created_atstringISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.errorstringError message (empty if no error occurred)
data.timingsobjectObject containing timing details
data.timings.inferenceintegerInference time in milliseconds

Result Request Parameters

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