seedance-2.5

Name: seedance-2.5
Brand: ByteDance

视频

Seedance 2.5 是豆包大模型团队推出的新一代多模态视频创作模型，已迈入「长叙事 × 多素材 × 强编辑 × 多语言」的工业级新阶段。

Resolution

480

720

Without video input

¥0.6888/ s

¥1.5484/ s

With video input

¥0.6888/ s

¥1.5484/ s

Input

Text

Output

Video

Input

Video script *

Duration (seconds)ResolutionExact sizeAspect ratio

Generate audio

SeedUse -1 for random; identical seeds are not guaranteed to match

Reference materials

Optional. Used for image-to-video, first/last frame driving, video style transfer, or audio-driven generation. Click or drag to upload a local file.

Last frame requires a first frame URL

First frame image

Click to upload

Last frame image

Click to upload

Reference video

Click to upload

Reference audio

Click to upload

Output

API

Quick Start

Drop-in code to call this model with EasyAPI's OpenAI-compatible API.

Get your API key

Create an API key from your dashboard and set it as an environment variable:

Replace sk-xxxxxxxx with your API token from the console (Bearer token).

Create API token

shell

export EASYAPI_API_KEY=sk-xxxxxxxx

Make your first request

Use bytedance/seedance-2.5 with the EasyAPI API:

cURL

curl https://token.easyapi.com/v1/videos \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $EASYAPI_API_KEY" \
  -d '{
  "model": "bytedance/seedance-2.5",
  "prompt": "A golden retriever running on a sunny beach, cinematic camera movement",
  "duration": 5,
  "resolution": "720p",
  "aspect_ratio": "adaptive",
  "generate_audio": false,
  "seed": -1,
  "size": "1280x720",
  "input_references": [
    {
      "type": "image",
      "url": "https://cdn.example.com/portrait.jpg",
      "role": "first_frame"
    }
  ]
}'

Endpoint

Submits a video generation task from a text prompt.

POSThttps://token.easyapi.com/v1/videos

Authorization: Bearer $EASYAPI_API_KEY
Content-Type: application/json
Model: bytedance/seedance-2.5

Submit a video generation task from a prompt. The response includes a task ID or result URL. Docs

Parameters

Name	Type	Required	Description
`model`	string	Yes	Model ID, e.g. bytedance/seedance-2.0. Currently bytedance/seedance-2.5
`prompt`	string	Yes	Video description; include subject, action, scene, camera and style. Limits vary by model: Sora 500 characters, Hailuo 2000, Wan T2V 1500, I2V 800. EasyAPI sets no hard limit; over-limit requests are rejected upstream and passed through as 502 / 503.
`duration`	integer	No	Video duration in seconds, 4–15
`resolution`	string	No	Output resolution: 480p, 720p or 1080p
`aspect_ratio`	string	No	Aspect ratio: 16:9, 4:3, 1:1, 3:4, 9:16, 21:9 or adaptive
`generate_audio`	boolean	No	Whether to generate audio
`seed`	integer	No	Random seed, -1 to 4294967295; the same seed does not guarantee identical output
`size`	string	No	Exact output size, e.g. 1280x720
`input_references`	array	No	Optional array of reference assets for image-to-video, first/last-frame control, video style transfer or audio-driven generation
`input_references[].type`	string	Yes	Reference asset type: image, video or audio; must match role
`input_references[].url`	string	Yes	HTTPS URL of the reference asset
`input_references[].role`	string	Yes	Reference asset role: first_frame, last_frame, reference (appearance reference image), reference_video or reference_audio
`metadata`	object	No	Pass-through business field for auditing or source tagging
`webhook_url`	string	No	Callback URL invoked when the task succeeds or fails

Using third-party SDKs

Official OpenAI and other SDKs work by swapping the base URL. See integration guide

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