Omni video

Seedance 2.0 Omnidirectional Video Request Requirements

This document describes the request requirements for the Seedance 2.0 Omnidirectional Video API.

Request Body Parameters

Field	Value
model	`["seedance-2.0-pro","seedance-2.0-fast"]`
prompt_max_length	10000
reference_img_max_length	9
duration	`[4,5,6,7,8,9,10,11,12,13,14,15]`
aspect_ratio	`["16:9","9:16","4:3","1:1","3:4","21:9","adaptive"]`
resolution	`["720p","480p"]`
generating_count	`[1,2,3,4]`

WARNING

adaptive Adaptation Rule

When ratio is configured as adaptive The model will automatically adapt the aspect ratio based on the generated scene.

Value Selection Rules:

Generated Video (Text-based): Intelligently selects the most suitable aspect ratio based on the input prompt.

Generated Video (First Frame/First and Last Frames): Automatically selects the closest aspect ratio based on the ratio of the uploaded first frame image.

Generated Video (Multimodal Reference): Determines the user's intent based on the prompt...

Acceptable Fields

prompt

model

duration

aspect_ratio

resolution

generating_count

images

audios

videos

Prompt Requirements

The length of prompt must not exceed 10,000 characters.

General Reference Requirements

At least one reference input must be included in images, audios, or videos.

The number of items in images must not exceed 9.

Image Reference Requirements

Each item in images must use one of the following input formats:

base64

url

Base64 image content must be valid and decodable.

URL-based image input must use a valid http or https download URL.

Audio Reference Requirements

Each item in audios must use:

url

Base64 encoding is not supported for audio references.

URL-based audio input must use a valid http or https download URL.

Video Reference Requirements

Each item in videos must use:

url

Base64 encoding is not supported for video references.

URL-based video input must use a valid http or https download URL.

Media File Size Limits

HTTP Request Size

The total size of the HTTP request body must not exceed 64 MB.

Large media files should be submitted using url instead of base64 format.

Image Size Limits

Each image must be less than 30 MB.

Audio Size Limits

Each audio file must not exceed 15 MB.

Each audio file must be between 2 and 15 seconds long.

The total duration of all audio files must not exceed 15 seconds.

Video Size Limits

Each video file must not exceed 50 MB.

Each video file must be between 2 and 15 seconds long.

The total duration of all video files must not exceed 15 seconds.

application/json

Bodyapplication/json

Example

{
    "code": 200,
    "msg": "success",
    "uuid": "87df77c8-12de-4bd6-91f1-3832c7bcecf9",
    "data": {
        "task_id": "string"
    }
}

Seedance 2.0 Omnidirectional Video Request Requirements#

Request Body Parameters#

Acceptable Fields#

Prompt Requirements#

General Reference Requirements#

Image Reference Requirements#

Audio Reference Requirements#

Video Reference Requirements#

Media File Size Limits#

HTTP Request Size#

Image Size Limits#

Audio Size Limits#

Video Size Limits#

Request

Responses

Seedance 2.0 Omnidirectional Video Request Requirements

Request Body Parameters

Acceptable Fields

Prompt Requirements

General Reference Requirements

Image Reference Requirements

Audio Reference Requirements

Video Reference Requirements

Media File Size Limits

HTTP Request Size

Image Size Limits

Audio Size Limits

Video Size Limits