Seedance (Video Generation from First and Last Frames)

POST

/doubao/doubao-seedance

**Only the following models are supported currently:

doubao-seedance-1-5-pro-251215
doubao-seedance-1-0-pro-250528
doubao-seedance-1-0-lite-i2v-250428**

Request parameters for the API are generated with reference to the Official Documentation.

📌 Core Principle: Missing mandatory fields will directly cause call failure; default values apply if optional fields are not configured. Parameter instructions in content.text take priority over independent optional parameters.

Partial Parameter Description:

generate_audio 「Audio Control」
🔍 Function: Controls whether the video contains synchronized audio (supported only by Seedance 1.5 Pro, invalid for other models)

true (default): Generate video with synchronized audio (automatically matches human voice/sound effects/background music; dialogues wrapped in double quotes for optimization)

false: Generate silent video

service_tier 「Service Tier」
🔍 Function: Specifies the task processing tier, unmodifiable after submission

default (default): Online inference with high timeliness and low quota

flex: Offline inference with higher quota, priced at 50% of the online rate, suitable for latency-tolerant scenarios

⚠️ Critical Notes

Priority: Parameters in content.text > independent optional parameters; avoid duplicate configuration

For image-to-video generation, it is recommended to set ratio to adaptive to match the aspect ratio of the reference image

Audio control (generate_audio) is only supported by Seedance 1.5 Pro; configuration is invalid for other models

Generated files are retained for 7 days, and task status can be actively checked via the Task Query API

Pricing

Model	Price	Remarks
seedance-1.0-pro	2.2 PTC /1M token
seedance-1.0-lite	1.5 PTC /1M token
seedance-1.5-pro	0.6 PTC /1M token	Silent (Offline)
seedance-1.5-pro	1.2 PTC /1M token	Audio (Offline)
seedance-1.5-pro	1.2 PTC /1M token	Silent (Online)
seedance-1.5-pro	2.4 PTC /1M token	Audio (Online)

Pricing is calculated by Token:
Token = Width × Height × Frame Rate × Duration / 1024
Pricing Reference Source

Detailed pricing is calculated based on the selected model and parameters (📊 View Pricing Reference Table).

Request

Header Params

Body Params application/json

Example

{
    "model": "doubao-seedance-1-5-pro-251215",
    "content": [
        {
            "type": "text",
            "text": "The girl in the picture says cheese to the camera, with a 360-degree"
        },
        {
            "type": "image_url",
            "image_url": {
                "url": "https://ark-project.tos-cn-beijing.volces.com/doc_image/seepro_first_frame.jpeg"
            },
            "role": "first_frame"
        },
        {
            "type": "image_url",
            "image_url": {
                "url": "https://ark-project.tos-cn-beijing.volces.com/doc_image/seepro_last_frame.jpeg"
            },
            "role": "last_frame"
        }
    ],
    "resolution": "720p",
    "ratio": "16:9",
    "duration": 10,
    "generate_audio": true,
    "service_tier": "default"
}

Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location --request POST 'https://api.302.ai/doubao/doubao-seedance' \
--header 'Authorization: Bearer ' \
--header 'Content-Type: application/json' \
--data-raw '{
    "model": "doubao-seedance-1-5-pro-251215",
    "content": [
        {
            "type": "text",
            "text": "The girl in the picture says cheese to the camera, with a 360-degree"
        },
        {
            "type": "image_url",
            "image_url": {
                "url": "https://ark-project.tos-cn-beijing.volces.com/doc_image/seepro_first_frame.jpeg"
            },
            "role": "first_frame"
        },
        {
            "type": "image_url",
            "image_url": {
                "url": "https://ark-project.tos-cn-beijing.volces.com/doc_image/seepro_last_frame.jpeg"
            },
            "role": "last_frame"
        }
    ],
    "resolution": "720p",
    "ratio": "16:9",
    "duration": 10,
    "generate_audio": true,
    "service_tier": "default"
}'

Responses

🟢200成功

application/json

Body

Example

{
    "id": "cgt-20250605180428-cfjt9"
}

Modified at 2025-12-30 03:27:41

Seedance (Text/picture generated video)

Seedance (Reference-based Video Generation)

Seedance (Video Generation from First and Last Frames)

**Only the following models are supported currently:#

Partial Parameter Description:#

⚠️ Critical Notes#