Seedream 5.0 Lite · Image to Image

Edit and transform images with Seedream 5.0 Lite using 1–14 reference images through the SeeAPI developer API.

Developer API pricing

Provider: SeeAPI

USD estimate: $0.0037 / credit · Estimated equivalent, not an additional charge.

Price: 8 credits/gen (≈ $0.03/gen)

Query Task Status

After submitting a task, use the unified query endpoint to check progress and retrieve results:

Get Task DetailsLearn how to query task status and retrieve generation results

Use callbacks for production workflows and poll the task status only when a webhook cannot be used.

Related Resources

Market Overview

Explore all available models

Credits & Billing

View credit balance, plans, and billing activity

Usage

Review API usage and credit consumption

Callbacks

Manage the secret used to verify generation webhook signatures. Callback URLs are supplied when you create each generation.

Webhook flow

Callback URL per generation.

Webhook signing key

Request

POST/v1/generations

AuthorizationSend your API key in the Authorization header using the Bearer scheme.Authorization: Bearer ****************

Header Params

stringrequired

A new, stable key for each generation request. Reuse it only when retrying the same request body.

max length: 255

Example:: order-20260818-001

Body Params

application/json

stringrequired

The public model ID documented on this page. Use seedream-5-lite for this Endpoint.

Allowed:seedream-5-lite

Default:: seedream-5-lite
Example:: seedream-5-lite

stringrequired

The Endpoint ID documented on this page. Use image-to-image with this model.

Allowed:image-to-image

Default:: image-to-image
Example:: image-to-image

stringoptional

Optional public Provider ID. Omit it to use the Endpoint default Provider (seeapi).

Allowed:seeapi

Default:: seeapi
Example:: seeapi

objectrequired

Model input validated against the selected Provider form_schema and api_policy.

Provider parameters

SeeAPIseeapiDefault Provider

stringrequired

Describe the requested edit in 3–3000 characters.

min length: 3max length: 3000

Example:: Restyle the reference images as a clean premium product illustration.

array <uri>required

Upload 1–14 JPEG, PNG, or WebP images. Each image must not exceed 30 MB.

min items: 1max items: 14

Example:: ["https://client.example.com/input.png"]

stringoptional

Choose the output width-to-height ratio.

Allowed:1:14:33:416:99:162:33:221:9

Default:: 1:1

stringoptional

Basic outputs 2K images, High outputs 3K images, and Ultra outputs 4K images.

Allowed:basichighultra

Default:: basic

stringoptional

Choose PNG or JPEG for the generated image.

Allowed:pngjpeg

Default:: png

booleanoptional

Enable SeeAPI's upstream NSFW checker. This option is exposed to API clients only.

Default:: false

string <uri>optional

An absolute HTTPS URL that receives the terminal generation Webhook.

max length: 2048

Example:: https://client.example.com/webhooks/seeapi

Responses

202Generation accepted and processing

Bodyapplication/json

objectrequired

stringrequired

Example:: task_xxx

stringrequired

Example:: seedream-5-lite

stringrequired

Example:: image-to-image

stringrequired

Allowed:seeapi

seeapi: SeeAPI

Example:: seeapi

stringrequired

Allowed:processing

Example:: processing

numberrequired

Estimated public credits. Values can include up to three decimal places.

Example:: 8

numberrequired

Consumed public credits, with up to three decimal places.

Example:: 0

numberrequired

Refunded public credits, with up to three decimal places.

Example:: 0

string <date-time>required

Example:: 2026-08-18T10:00:00Z

string <date-time>required

Example:: 2026-08-18T10:00:00Z

booleanrequired

Whether this response is an idempotent replay of an earlier request.

Example:: false

200Idempotent replay of an existing generation request

Bodyapplication/json

objectrequired

stringrequired

Example:: task_xxx

stringrequired

Example:: seedream-5-lite

stringrequired

Example:: image-to-image

stringrequired

Allowed:seeapi

seeapi: SeeAPI

Example:: seeapi

stringrequired

Allowed:processing

Example:: processing

numberrequired

Estimated public credits. Values can include up to three decimal places.

Example:: 8

numberrequired

Consumed public credits, with up to three decimal places.

Example:: 0

numberrequired

Refunded public credits, with up to three decimal places.

Example:: 0

string <date-time>required

Example:: 2026-08-18T10:00:00Z

string <date-time>required

Example:: 2026-08-18T10:00:00Z

booleanrequired

Whether this response is an idempotent replay of an earlier request.

Example:: false

400

Invalid JSON, parameters, Schema, or API Policy

401

Invalid API Key or authentication failed

402

Insufficient credits

403

The current request is not allowed

404

Model, Endpoint, or task not found

409

Idempotency conflict or the same request is still being created

413

Request body is too large

429

Too many requests

503

Service temporarily unavailable

Code Examples

Request

const response = await fetch("https://api.seeapi.com/v1/generations", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Idempotency-Key": "order-20260818-001",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
  "model": "seedream-5-lite",
  "endpoint": "image-to-image",
  "provider": "seeapi",
  "input": {
    "prompt": "Restyle the reference images as a clean premium product illustration.",
    "input_images": [
      "https://client.example.com/input.png"
    ],
    "aspect_ratio": "1:1",
    "quality": "basic",
    "output_format": "png",
    "nsfw_checker": false
  },
  "callback_url": "https://client.example.com/webhooks/seeapi"
})
});

const result = await response.json();

ResponseHTTP 202

{
  "generation": {
    "id": "task_xxx",
    "model": "seedream-5-lite",
    "endpoint": "image-to-image",
    "provider": "seeapi",
    "status": "processing",
    "estimated_credits": 8,
    "consumed_credits": 0,
    "refunded_credits": 0,
    "created_at": "2026-08-18T10:00:00Z",
    "updated_at": "2026-08-18T10:00:00Z"
  },
  "idempotent": false
}

const response = await fetch("https://api.seeapi.com/v1/generations", { method: "POST", headers: { "Authorization": "Bearer YOUR_API_KEY", "Idempotency-Key": "order-20260818-001", "Content-Type": "application/json" }, body: JSON.stringify({ "model": "seedream-5-lite", "endpoint": "image-to-image", "provider": "seeapi", "input": { "prompt": "Restyle the reference images as a clean premium product illustration.", "input_images": [ "https://client.example.com/input.png" ], "aspect_ratio": "1:1", "quality": "basic", "output_format": "png", "nsfw_checker": false }, "callback_url": "https://client.example.com/webhooks/seeapi" }) }); const result = await response.json();

{ "generation": { "id": "task_xxx", "model": "seedream-5-lite", "endpoint": "image-to-image", "provider": "seeapi", "status": "processing", "estimated_credits": 8, "consumed_credits": 0, "refunded_credits": 0, "created_at": "2026-08-18T10:00:00Z", "updated_at": "2026-08-18T10:00:00Z" }, "idempotent": false }

Responses

202Generation accepted and processing

Bodyapplication/json

objectrequired

stringrequired

Example:: task_xxx

stringrequired

Example:: seedream-5-lite

stringrequired

Example:: image-to-image

stringrequired

Allowed:seeapi

seeapi: SeeAPI

Example:: seeapi

stringrequired

Allowed:processing

Example:: processing

numberrequired

Estimated public credits. Values can include up to three decimal places.

Example:: 8

numberrequired

Consumed public credits, with up to three decimal places.

Example:: 0

numberrequired

Refunded public credits, with up to three decimal places.

Example:: 0

string <date-time>required

Example:: 2026-08-18T10:00:00Z

string <date-time>required

Example:: 2026-08-18T10:00:00Z

booleanrequired

Whether this response is an idempotent replay of an earlier request.

Example:: false

200Idempotent replay of an existing generation request

Bodyapplication/json

objectrequired

stringrequired

Example:: task_xxx

stringrequired

Example:: seedream-5-lite

stringrequired

Example:: image-to-image

stringrequired

Allowed:seeapi

seeapi: SeeAPI

Example:: seeapi

stringrequired

Allowed:processing

Example:: processing

numberrequired

Estimated public credits. Values can include up to three decimal places.

Example:: 8

numberrequired

Consumed public credits, with up to three decimal places.

Example:: 0

numberrequired

Refunded public credits, with up to three decimal places.

Example:: 0

string <date-time>required

Example:: 2026-08-18T10:00:00Z

string <date-time>required

Example:: 2026-08-18T10:00:00Z

booleanrequired

Whether this response is an idempotent replay of an earlier request.

Example:: false

400

Invalid JSON, parameters, Schema, or API Policy

401

Invalid API Key or authentication failed

402

Insufficient credits

403

The current request is not allowed

404

Model, Endpoint, or task not found

409

Idempotency conflict or the same request is still being created

413

Request body is too large

429

Too many requests

503

Service temporarily unavailable