Seedance 2.0 Mini · Reference to Video

Generate a video from image, video, or audio references. Provide at least one reference asset; reference audio also requires a reference image or video.

Developer API pricing

Provider: SeeAPI

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

480p: 10 credits/sec (≈ $0.037/sec, no video) | 8 credits/sec (≈ $0.03/sec, with video)

720p: 20 credits/sec (≈ $0.075/sec, no video) | 14 credits/sec (≈ $0.052/sec, with video)

Note: No video = unit price × output duration; with video = unit price × (output + reference video duration).

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

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 unique key for this generation request. Reuse the same value only when retrying the identical request body.

max length: 255

Example:: order-20260818-001

Body Params

application/json

stringrequired

The public model ID documented on this page. Use seedance-2-mini for this Endpoint.

Allowed:seedance-2-mini

Default:: seedance-2-mini
Example:: seedance-2-mini

stringrequired

The public Endpoint ID for the selected model. Use the Endpoint whose input schema matches this request.

Allowed:reference-to-video

Default:: reference-to-video
Example:: reference-to-video

stringoptional

Optional public Provider ID. Omit this field to use the Endpoint's default Provider.

Allowed:seeapi

Default:: seeapi
Example:: seeapi

objectrequired

Reference-generation input validated against the selected Provider contract.

Provide at least one reference image, reference video, or reference audio file.

Provider parameters

SeeAPIseeapiDefault Provider

stringoptional

Describe the content to generate, including the subject, scene, action, visual style, camera behavior, and other important details.

min length: 3max length: 20000

array <uri>optional

Provide reference images for subject identity, composition, style, or visual consistency.

Accepted formats: JPEG/JPG, PNG, WebP, BMP, TIFF, and GIF.
Each image must be smaller than 30 MB.
Width and height must each be greater than 300 and less than 6,000 pixels.
The width-to-height ratio must be greater than 0.4 and less than 2.5.
Upload up to 9 reference images.

max items: 9

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

array <uri>optional

Provide reference videos for motion, structure, or visual behavior.

Accepted formats: MP4 and MOV.
Each video must be 2–15 seconds and no larger than 50 MB.
Each video must be 480p or 720p at 24–60 FPS.
Width and height must each be 300–6,000 pixels; the width-to-height ratio must be 0.4–2.5; total pixels must be 409,600–927,408.
Upload up to 3 videos; their combined duration must not exceed 15 seconds.

max items: 3

array <uri>optional

Provide reference audio for timing, sound, or motion guidance.

Accepted formats: MP3 and WAV.
Each audio file must be 2–15 seconds and no larger than 15 MB.
Upload up to 3 audio files; their combined duration must not exceed 15 seconds.
Reference audio requires at least one reference image or reference video.

max items: 3

stringoptional

Select the width-to-height ratio of the generated output.

Allowed:16:94:31:13:49:1621:9adaptive

Default:: adaptive

numberoptional

Requested output duration in seconds. Choose a value supported by this Provider and Endpoint.

min: 4max: 15

Default:: 5

stringoptional

Select the requested output resolution. Higher resolutions may increase processing time and credit usage.

Allowed:480p720p

Default:: 720p

booleanoptional

Whether the generated video should include an audio track when this Provider supports audio generation.

Default:: true

booleanoptional

Enable the upstream NSFW checker.

Default:: true

string <uri>optional

Optional absolute HTTPS URL that receives terminal generation updates. If omitted, query the task-details endpoint with the returned generation ID.

max length: 2048

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

Responses

202Generation accepted and processing

Bodyapplication/json

objectrequired

stringrequired

Example:: task_xxx

stringrequired

Example:: seedance-2-mini

stringrequired

Example:: reference-to-video

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:: 100

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:: seedance-2-mini

stringrequired

Example:: reference-to-video

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:: 100

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": "seedance-2-mini",
  "endpoint": "reference-to-video",
  "provider": "seeapi",
  "input": {
    "reference_images": [
      "https://client.example.com/reference.png"
    ],
    "aspect_ratio": "adaptive",
    "duration_seconds": 5,
    "resolution": "720p",
    "generate_audio": true,
    "nsfw_checker": true
  },
  "callback_url": "https://client.example.com/webhooks/seeapi"
})
});

const result = await response.json();

ResponseHTTP 202

{
  "generation": {
    "id": "task_xxx",
    "model": "seedance-2-mini",
    "endpoint": "reference-to-video",
    "provider": "seeapi",
    "status": "processing",
    "estimated_credits": 100,
    "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": "seedance-2-mini", "endpoint": "reference-to-video", "provider": "seeapi", "input": { "reference_images": [ "https://client.example.com/reference.png" ], "aspect_ratio": "adaptive", "duration_seconds": 5, "resolution": "720p", "generate_audio": true, "nsfw_checker": true }, "callback_url": "https://client.example.com/webhooks/seeapi" }) }); const result = await response.json();

{ "generation": { "id": "task_xxx", "model": "seedance-2-mini", "endpoint": "reference-to-video", "provider": "seeapi", "status": "processing", "estimated_credits": 100, "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:: seedance-2-mini

stringrequired

Example:: reference-to-video

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:: 100

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:: seedance-2-mini

stringrequired

Example:: reference-to-video

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:: 100

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