Bytedance Seedream V5.0 Lite Edit API Documentation

Bytedance Seedream V5.0 Lite Edit API Documentation

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Seedream 5.0 Lite Edit by is a state-of-the-art image editing model preserving facial features, lighting, and color tones from reference images. Features high-fidelity editing with professional quality, superior prompt adherence, and up to 4K resolution. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

Seedream V5.0 Lite Edit is lightweight image editing model, enabling creative transformations and style transfers using reference images and text prompts. Upload reference images and describe the desired edit — the model generates stunning results while preserving identity and key features.


Why Choose This?

  • Multi-image reference Use multiple reference images for complex edits and compositions.

  • Natural language editing Describe your edit in plain text — reference images by Figure number for precise control.

  • Style transfer Transform subjects into different aesthetics like cyberpunk, anime, fantasy, and more.

  • Lightweight & fast Lite version optimized for speed while maintaining quality.

  • Prompt Enhancer Built-in tool to automatically improve your edit descriptions.

  • Flexible sizing Specify custom output size, or leave blank to match the reference image.


Parameters

ParameterRequiredDescription
promptYesText description of the desired edit (use “Figure 1”, “Figure 2” to reference images)
imagesYesReference images for the edit (click ”+ Add Item” to add more)
sizeNoOutput size; if empty, matches the reference image’s aspect ratio

How to Use

  1. Upload reference images — add images containing subjects or elements for your edit.
  2. Write your prompt — describe the transformation, using “Figure 1”, “Figure 2” to reference specific images.
  3. Set size (optional) — specify output dimensions, or leave blank for default.
  4. Use Prompt Enhancer (optional) — click to automatically refine your description.
  5. Run — submit and download your edited image.

Pricing

OutputCost
Per image$0.035

Best Use Cases

  • Style Transfer — Transform portraits into cyberpunk, anime, fantasy, or artistic styles.
  • Character Reimagining — Place subjects in new environments or scenarios.
  • Creative Compositing — Combine elements from multiple references.
  • Concept Art — Generate stylized versions of existing images.
  • Social Media Content — Create eye-catching edits for posts and profiles.

Pro Tips

  • Use “Figure 1”, “Figure 2”, etc. in your prompt to reference images in upload order.
  • Be specific about the style you want — include lighting, aesthetic, and mood details.
  • Clear, front-facing portraits produce the best identity preservation.
  • Try the Prompt Enhancer for more detailed and effective descriptions.
  • Lite version is great for quick iterations before using the full model.

Notes

  • Both prompt and images are required fields.
  • Ensure uploaded image URLs are publicly accessible.
  • Output size defaults to reference image’s aspect ratio if not specified.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result

set -euo pipefail

export WAVESPEED_API_KEY="your-api-key"

REQUEST_BODY=$(cat <<'JSON'
{
  "prompt": "A cinematic ocean wave at sunrise, highly detailed",
  "images": [
    "https://interactive-examples.mdn.mozilla.net/media/cc0-images/painted-hand-298-332.jpg"
  ],
  "output_format": "jpeg"
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/bytedance/seedream-v5.0-lite/edit" \
  -H "Authorization: Bearer ${WAVESPEED_API_KEY}" \
  -H "Content-Type: application/json" \
  -d "${REQUEST_BODY}")

TASK=$(printf '%s' "${SUBMIT_RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "${TASK}" | jq -r '.id // empty')
if [ -z "${PREDICTION_ID}" ]; then
  printf 'Submission response did not contain a prediction id
' >&2
  exit 1
fi
RESULT_URL=$(printf '%s' "${TASK}" | jq -r '.urls.get // empty')
if [ -z "${RESULT_URL}" ]; then RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/${PREDICTION_ID}/result"; fi

# 2. Poll until the prediction finishes.
while true; do
  RESPONSE=$(curl --silent --show-error --fail-with-body \
    "${RESULT_URL}" \
    -H "Authorization: Bearer ${WAVESPEED_API_KEY}")
  RESULT=$(printf '%s' "${RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
  STATUS=$(printf '%s' "${RESULT}" | jq -r '.status // empty')

  case "${STATUS}" in
    completed) printf '%s\n' "${RESULT}" | jq '.outputs'; break ;;
    failed|cancelled|timeout) printf '%s\n' "${RESULT}" | jq . >&2; exit 1 ;;
    created|processing) sleep 2 ;;
    *) printf 'Unexpected status: %s
' "${STATUS}" >&2; exit 1 ;;
  esac
done

Parameters

Task Submission Parameters

Request Parameters

ParameterTypeRequiredDefaultRangeDescription
promptstringYes-The positive prompt for the generation.
imagesarray<string>Yes-0 ~ 10 itemsThe images to edit. A maximum of 10 reference images can be uploaded.
output_formatstringNo-jpeg, pngThe format of the output image.
enable_sync_modebooleanNofalse-If set to `true`, the request attempts to wait for the generated result and return outputs in the same response. If the result is not ready within the sync wait window, the API can return a timeout body while the task continues processing. This option is only available via the API and is supported only by some models.
enable_base64_outputbooleanNofalse-If set to `true`, the prediction's `output` strings are returned as **naked base64** (no `data:<mime>;base64,` prefix). When `false` (default), outputs are returned as URLs pointing to our CDN.

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.outputsarrayOutput values, usually URL strings; some models return text strings or structured result objects (empty when status is not completed)
data.urlsobjectObject containing related API endpoints
data.urls.getstringURL to retrieve the prediction result
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

ParameterTypeRequiredDefaultDescription
idstringYes-Task ID

Result Response Parameters

ParameterTypeDescription
codeintegerHTTP status code (e.g., 200 for success)
messagestringStatus message (e.g., “success”)
dataobjectThe prediction data object containing all details
data.idstringUnique identifier for the prediction
data.modelstringModel ID used for the prediction
data.outputsarray<string | object>Array of generated outputs (empty when status is not completed). Items are usually URL strings, but may be text strings or structured result objects, depending on the model.
data.urlsobjectObject containing related API endpoints
data.urls.getstringURL to poll for the prediction result
data.statusstringStatus: created, processing, completed, or failed
data.created_atstringISO timestamp of when the request was created
data.errorstringError message (empty if no error occurred)
data.timingsobjectObject containing timing details
data.timings.inferenceintegerInference time in milliseconds
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