Seedance 2.5

Cinematic long takes with sound, from text, a still image or a set of references.


Model id	`video/seedance-2.5`
Price	$0.462 per second
Does	Text to video, Picture to video
Output	MP4
Made by	ByteDance
Try it	Examples and playground on summerengine.com
Commercial use	Yes

Examples

Real outputs of video/seedance-2.5, each with the input that made it.

From a picture: A bolt of violet lightning strikes the raised pendant in the first instant. Ribbons of blue light spiral around her as the camera orbits a full 360 degrees; the hoodie dissolves…

From a picture: Henshin transformation: she raises the glowing pendant and ribbons of blue light spiral up around her from feet to head while the camera orbits 180 degrees around her. The hoodie…

From a picture: One continuous tracking shot: the two fighters rush in and clash in a flurry of fast strikes, sparks flying where the blades meet. The crimson fighter leaps and spins over her…

From a picture: Satisfying unboxing: the hands slide the figure out of the box and set it down on the desk. The little vinyl heroine blinks, stretches, comes to life, twirls her tiny sword and…

Best for

Hero shots for a trailer with sweeping camera moves.
Product and item orbits for a store page.
Building one shot from your concept art and a motion reference.

Price

$0.462 per second, counted from duration. Exact list price: 0.46224 USD. At the default duration of 5 seconds: $2.311. This is the price of a typical request. The exact price depends on the request: ask POST /v1/estimate first.

When	Price
`imageUrl` is set	$0.465 per second
`resolution` is `"1080p"`	$1.146 per second

No markup: this is the provider’s list price, checked 2026-09-26. A failed job costs nothing. Get the exact price of one request, free and without a key, from POST /v1/estimate.

Example call

Sign in once with summer login; over HTTP, send Authorization: Bearer $SUMMER_TOKEN after export SUMMER_TOKEN=$(summer token) (sign-in). This job takes minutes. The CLI follows it and saves the file. Over HTTP the call answers running with a job id: check GET /v1/jobs/{id} until state is done (jobs); the quickstart has the full loop.

npx -y summer-engine@latest api run video/seedance-2.5 \
  --input '{"prompt":"the treasure chest from the reference slowly opens on a mossy forest floor, warm light spills out","referenceImageUrls":["https://docs.summerengine.com/images/api/chest.png"],"duration":5}' \
  --download .

curl https://www.summerengine.com/v1/jobs \
  -H "Authorization: Bearer $SUMMER_TOKEN" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Prefer: wait=60" \
  -d '{"model":"video/seedance-2.5","input":{"prompt":"the treasure chest from the reference slowly opens on a mossy forest floor, warm light spills out","referenceImageUrls":["https://docs.summerengine.com/images/api/chest.png"],"duration":5}}'

const res = await fetch("https://www.summerengine.com/v1/jobs", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.SUMMER_TOKEN}`,
    "Content-Type": "application/json",
    "Idempotency-Key": crypto.randomUUID(),
    Prefer: "wait=60",
  },
  body: JSON.stringify({
    "model": "video/seedance-2.5",
    "input": {
      "prompt": "the treasure chest from the reference slowly opens on a mossy forest floor, warm light spills out",
      "referenceImageUrls": [
        "https://docs.summerengine.com/images/api/chest.png"
      ],
      "duration": 5
    }
  }),
});
const { job } = await res.json();
console.log(job.state, job.id);

import os, uuid, requests

res = requests.post(
    "https://www.summerengine.com/v1/jobs",
    headers={
        "Authorization": f"Bearer {os.environ['SUMMER_TOKEN']}",
        "Idempotency-Key": str(uuid.uuid4()),
        "Prefer": "wait=60",
    },
    json={"model": "video/seedance-2.5", "input": {"prompt": "the treasure chest from the reference slowly opens on a mossy forest floor, warm light spills out", "referenceImageUrls": ["https://docs.summerengine.com/images/api/chest.png"], "duration": 5}},
)
job = res.json()["job"]
print(job["state"], job["id"])

// Summer's MCP server: npx -y summer-engine@latest setup <agent> --yes
summer_api_run({
  model: "video/seedance-2.5",
  input: {
    prompt: "the treasure chest from the reference slowly opens on a mossy forest floor, warm light spills out",
    referenceImageUrls: ["https://docs.summerengine.com/images/api/chest.png"],
    duration: 5
  },
  out: "assets",
})
// It answers `next` while the job runs: follow it to the end.
summer_api_job({ jobId: "<jobId>", wait: true, out: "assets" })

The finished job has state "done" and result.assets: one entry per file, each with assetId, fileUrl (a Summer URL) and thumbnailUrl. Download the file into your project, or import it in Summer Engine by its asset id.

Input

Send these fields in input. The full JSON Schema is inputSchema in GET /v1/models/video/seedance-2.5.

Field	Type	About
`prompt`	string	What happens in the clip. Needed without imageUrl. up to 4000 characters
`imageUrl`	string	A public image URL to animate (image to video). up to 2048 characters
`referenceImageUrls`	array of string	Reference to video: public images of the characters, props or style to keep (with a reference model, e.g. kling-4-ref). Motion transfer: the character to move. 1 to 10 items
`videoUrl`	string	An input clip (public URL, at most 20 s): restyle or reframe it, move a character with its motion, or add sound to it (e.g. kling-video-to-audio). Billed on the clip’s length. up to 2048 characters
`duration`	integer	Seconds; the model renders its nearest supported length. 1 to 20 Default `5`.
`aspectRatio`	`16:9`, `9:16`, `1:1`, `4:3`, `3:4`, `21:9`, `3:2`, `2:3`, `auto`	Default `"16:9"`.
`negativePrompt`	string	What the clip must not show. up to 1000 characters
`resolution`	`720p`, `1080p`, `4k`, `480p`, `768p`, `2k`, `768P`, `1080P`, `480P`	Only a quality the model offers; leave out for its default.

Kling 3.0 Standard

video/kling-3: $0.14 per second (default)

Gemini Omni Flash

video/gemini-omni-flash: $0.125 per second

Kling 3.0 Pro

video/kling-3-pro: $0.168 per second

Seedance 2.0 Fast

video/seedance-2-fast-ref: $0.242 per second

For agents

This page as Markdown: https://docs.summerengine.com/api/models/video/seedance-2-5.md. The live record with the JSON Schema: GET https://www.summerengine.com/v1/models/video/seedance-2.5, public, no sign-in.

Start here

How to make

Models and pricing

Use the API

API reference

Examples

Best for

Price

Example call

Input

Kling 3.0 Standard

Gemini Omni Flash

Kling 3.0 Pro

Seedance 2.0 Fast

For agents

​Examples

​Best for

​Price

​Example call

​Input

​Related models

Kling 3.0 Standard

Gemini Omni Flash

Kling 3.0 Pro

Seedance 2.0 Fast

​For agents

Examples

Best for

Price

Example call

Input

Related models

For agents