# Doubao Seedance 2.5 260628 Video Generation

> Video Generation

Submit an asynchronous video generation task.

## Endpoint

`POST https://api.modelverse.cn/v1/tasks/submit`

## Request Body

## Responses

- **200** — Task submitted successfully.
- **400** — Invalid request parameters.
- **default** — Error response.

## OpenAPI Definition

```json
{
  "openapi": "3.1.0",
  "x-language": "en-US",
  "info": {
    "title": "ModelVerse doubao-seedance-2-5-260628 Video Task API",
    "version": "1.0.0",
    "description": "OpenAPI 3.1 schema for the ModelVerse `doubao-seedance-2-5-260628`\nasynchronous video generation task API.\n"
  },
  "servers": [
    {
      "url": "https://api.modelverse.cn",
      "description": "ModelVerse API endpoint documented for this model."
    }
  ],
  "tags": [
    {
      "name": "doubao-seedance-2-5-260628",
      "description": "Asynchronous video task operations for doubao-seedance-2-5-260628."
    }
  ],
  "security": [
    {
      "bearerAuth": []
    }
  ],
  "paths": {
    "/v1/tasks/submit": {
      "post": {
        "tags": [
          "doubao-seedance-2-5-260628"
        ],
        "operationId": "submitDoubaoSeedance20260628Task",
        "summary": "Doubao Seedance 2.5 260628 Video Generation",
        "description": "Submit an asynchronous video generation task.",
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": {
                "$ref": "#/components/schemas/DoubaoSeedance20260628TaskSubmitRequest"
              },
              "examples": {
                "textAndFirstFrame": {
                  "summary": "Text prompt with a first-frame image",
                  "value": {
                    "model": "doubao-seedance-2-5-260628",
                    "input": {
                      "content": [
                        {
                          "type": "text",
                          "text": "让他跑起来。"
                        },
                        {
                          "type": "image_url",
                          "image_url": {
                            "url": "https://umodelverse-inference.cn-wlcb.ufileos.com/ucloud-maxcot.jpg"
                          },
                          "role": "first_frame"
                        }
                      ]
                    },
                    "parameters": {
                      "duration": 5,
                      "resolution": "720p",
                      "ratio": "adaptive",
                      "generate_audio": false
                    }
                  }
                },
                "withReferenceVideoAndAudio": {
                  "summary": "Request with text, image, reference video, and reference audio",
                  "value": {
                    "model": "doubao-seedance-2-5-260628",
                    "input": {
                      "content": [
                        {
                          "type": "text",
                          "text": "让他跑起来。"
                        },
                        {
                          "type": "image_url",
                          "image_url": {
                            "url": "https://umodelverse-inference.cn-wlcb.ufileos.com/ucloud-maxcot.jpg"
                          },
                          "role": "first_frame"
                        },
                        {
                          "type": "video_url",
                          "video_url": {
                            "url": "https://ark-project.tos-cn-beijing.volces.com/doc_video/r2v_tea_video1.mp4"
                          },
                          "role": "reference_video"
                        },
                        {
                          "type": "audio_url",
                          "audio_url": {
                            "url": "https://ark-project.tos-cn-beijing.volces.com/doc_audio/r2v_tea_audio1.mp3"
                          },
                          "role": "reference_audio"
                        }
                      ]
                    },
                    "parameters": {
                      "execution_expires_after": 3600,
                      "generate_audio": true,
                      "resolution": "720p",
                      "ratio": "adaptive",
                      "duration": 30,
                      "camera_fixed": false,
                      "watermark": false,
                      "callback_url": "https://ark-project.tos-cn-beijing.volces.com"
                    }
                  }
                }
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "Task submitted successfully.",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/DoubaoSeedance20260628TaskSubmitResponse"
                },
                "examples": {
                  "submitted": {
                    "summary": "Submitted task",
                    "value": {
                      "output": {
                        "task_id": "task_id"
                      },
                      "request_id": "request_id"
                    }
                  }
                }
              }
            }
          },
          "400": {
            "description": "Invalid request parameters.",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/DoubaoSeedance20260628ErrorResponse"
                },
                "examples": {
                  "invalidParameter": {
                    "$ref": "#/components/examples/DoubaoSeedance20260628InvalidParameterError"
                  }
                }
              }
            }
          },
          "default": {
            "description": "Error response.",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/DoubaoSeedance20260628ErrorResponse"
                },
                "examples": {
                  "error": {
                    "$ref": "#/components/examples/DoubaoSeedance20260628InvalidParameterError"
                  }
                }
              }
            }
          }
        }
      }
    },
    "/v1/tasks/status": {
      "get": {
        "tags": [
          "doubao-seedance-2-5-260628"
        ],
        "operationId": "getDoubaoSeedance20260628TaskStatus",
        "summary": "Doubao Seedance 2.5 260628 Task Status",
        "description": "Query the status, result URLs, and usage details for an asynchronous video task.",
        "parameters": [
          {
            "name": "task_id",
            "in": "query",
            "required": true,
            "description": "Asynchronous task identifier returned by `/v1/tasks/submit`.",
            "schema": {
              "type": "string"
            },
            "examples": {
              "taskId": {
                "value": "task_id"
              }
            }
          }
        ],
        "responses": {
          "200": {
            "description": "Task status response.",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/DoubaoSeedance20260628TaskStatusResponse"
                },
                "examples": {
                  "success": {
                    "summary": "Successful task",
                    "value": {
                      "output": {
                        "task_id": "xxxxxxx",
                        "task_status": "Success",
                        "urls": [
                          "http://xxxxxxxx/xx.mp4"
                        ],
                        "submit_time": 1768460826,
                        "finish_time": 1768460932
                      },
                      "usage": {
                        "completion_tokens": 108900,
                        "total_tokens": 108900,
                        "duration": 5
                      },
                      "request_id": ""
                    }
                  },
                  "failure": {
                    "summary": "Failed task",
                    "value": {
                      "output": {
                        "task_id": "xxxxxxx",
                        "task_status": "Failure",
                        "submit_time": 1756959000,
                        "finish_time": 1756959019,
                        "error_message": "error_message"
                      },
                      "usage": {
                        "completion_tokens": 0,
                        "total_tokens": 0,
                        "duration": 5
                      },
                      "request_id": ""
                    }
                  }
                }
              }
            }
          },
          "400": {
            "description": "Invalid task identifier or request parameters.",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/DoubaoSeedance20260628ErrorResponse"
                },
                "examples": {
                  "invalidParameter": {
                    "$ref": "#/components/examples/DoubaoSeedance20260628InvalidParameterError"
                  }
                }
              }
            }
          },
          "default": {
            "description": "Error response.",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/DoubaoSeedance20260628ErrorResponse"
                },
                "examples": {
                  "error": {
                    "$ref": "#/components/examples/DoubaoSeedance20260628InvalidParameterError"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "securitySchemes": {
      "bearerAuth": {
        "type": "http",
        "scheme": "bearer",
        "bearerFormat": "API key",
        "description": "ModelVerse API key sent as `Authorization: Bearer <MODELVERSE_API_KEY>`."
      }
    },
    "schemas": {
      "DoubaoSeedance20260628TaskSubmitRequest": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "model",
          "input"
        ],
        "properties": {
          "model": {
            "type": "string",
            "const": "doubao-seedance-2-5-260628",
            "description": "Model name. Fixed to `doubao-seedance-2-5-260628` for this API document."
          },
          "input": {
            "$ref": "#/components/schemas/DoubaoSeedance20260628Input"
          },
          "parameters": {
            "$ref": "#/components/schemas/DoubaoSeedance20260628Parameters"
          }
        }
      },
      "DoubaoSeedance20260628Input": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "content"
        ],
        "properties": {
          "content": {
            "type": "array",
            "minItems": 1,
            "description": "Information objects used to generate the video. The source document defines\ntext, image, reference video, and reference audio object schemas. It also\nmentions a sample-video mode, but does not define that object's fields; sample\nmode must not be mixed with text or image objects.\n",
            "items": {
              "oneOf": [
                {
                  "$ref": "#/components/schemas/DoubaoSeedance20260628TextContent"
                },
                {
                  "$ref": "#/components/schemas/DoubaoSeedance20260628ImageUrlContent"
                },
                {
                  "$ref": "#/components/schemas/DoubaoSeedance20260628VideoUrlContent"
                },
                {
                  "$ref": "#/components/schemas/DoubaoSeedance20260628AudioUrlContent"
                }
              ]
            }
          }
        }
      },
      "DoubaoSeedance20260628TextContent": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "type",
          "text"
        ],
        "properties": {
          "type": {
            "type": "string",
            "const": "text",
            "description": "Input content type for text information."
          },
          "text": {
            "type": "string",
            "minLength": 1,
            "description": "Text prompt describing the expected video. Chinese and English are supported; no more than 500 Chinese characters is recommended."
          }
        }
      },
      "DoubaoSeedance20260628ImageUrlContent": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "type",
          "image_url"
        ],
        "properties": {
          "type": {
            "type": "string",
            "const": "image_url",
            "description": "Input content type for image information."
          },
          "image_url": {
            "$ref": "#/components/schemas/DoubaoSeedance20260628ImageUrlObject"
          },
          "role": {
            "type": "string",
            "description": "Image position or usage. With one image object, this may be omitted or set to\n`first_frame`. With two image objects, this is required: use `first_frame` for\nthe first frame and `last_frame` for the last frame. Use `reference_image` for\na reference image.\n",
            "enum": [
              "first_frame",
              "last_frame",
              "reference_image"
            ]
          }
        }
      },
      "DoubaoSeedance20260628ImageUrlObject": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "url"
        ],
        "properties": {
          "url": {
            "type": "string",
            "description": "Image URL or Base64 data URL. For Base64 input, use\n`data:image/<format>;base64,<Base64 data>` and keep `<format>` lowercase,\nfor example `data:image/png;base64,{base64_image}`.\n"
          }
        }
      },
      "DoubaoSeedance20260628VideoUrlContent": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "type",
          "video_url",
          "role"
        ],
        "properties": {
          "type": {
            "type": "string",
            "const": "video_url",
            "description": "Input content type for reference video information."
          },
          "video_url": {
            "$ref": "#/components/schemas/DoubaoSeedance20260628VideoUrlObject"
          },
          "role": {
            "type": "string",
            "const": "reference_video",
            "description": "Fixed value for reference video information."
          }
        }
      },
      "DoubaoSeedance20260628VideoUrlObject": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "url"
        ],
        "properties": {
          "url": {
            "type": "string",
            "format": "uri",
            "description": "Reference video URL. Ensure the URL is accessible."
          }
        }
      },
      "DoubaoSeedance20260628AudioUrlContent": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "type",
          "audio_url",
          "role"
        ],
        "properties": {
          "type": {
            "type": "string",
            "const": "audio_url",
            "description": "Input content type for reference audio information."
          },
          "audio_url": {
            "$ref": "#/components/schemas/DoubaoSeedance20260628AudioUrlObject"
          },
          "role": {
            "type": "string",
            "const": "reference_audio",
            "description": "Fixed value for reference audio information."
          }
        }
      },
      "DoubaoSeedance20260628AudioUrlObject": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "url"
        ],
        "properties": {
          "url": {
            "type": "string",
            "format": "uri",
            "description": "Reference audio URL. Ensure the URL is accessible."
          }
        }
      },
      "DoubaoSeedance20260628Parameters": {
        "type": "object",
        "additionalProperties": false,
        "properties": {
          "execution_expires_after": {
            "type": "integer",
            "minimum": 3600,
            "maximum": 259200,
            "default": 172800,
            "description": "Task expiration threshold in seconds after submission. Defaults to 172800 seconds, or 48 hours."
          },
          "generate_audio": {
            "type": "boolean",
            "default": false,
            "description": "Whether the generated video includes synchronized audio."
          },
          "resolution": {
            "type": "string",
            "default": "720p",
            "description": "Video resolution. Only `480p` and `720p` are supported. Sample-video mode supports only `480p`.",
            "enum": [
              "480p",
              "720p"
            ]
          },
          "ratio": {
            "type": "string",
            "default": "adaptive",
            "description": "Generated video aspect ratio. `adaptive` lets the model choose the most suitable aspect ratio.",
            "enum": [
              "16:9",
              "4:3",
              "1:1",
              "3:4",
              "9:16",
              "21:9",
              "adaptive"
            ]
          },
          "duration": {
            "type": "integer",
            "minimum": 4,
            "maximum": 30,
            "default": 5,
            "description": "Generated video duration in seconds; supports 4-30 seconds."
          },
          "seed": {
            "type": "integer",
            "minimum": 0,
            "maximum": 2147483647,
            "description": "Random seed."
          },
          "camera_fixed": {
            "type": "boolean",
            "default": false,
            "description": "Whether to fix the camera."
          },
          "watermark": {
            "type": "boolean",
            "default": false,
            "description": "Whether the generated video includes a watermark."
          },
          "callback_url": {
            "type": "string",
            "format": "uri",
            "description": "Callback URL for task status change notifications. ModelVerse sends POST requests to this URL when the video task status changes."
          }
        }
      },
      "DoubaoSeedance20260628TaskSubmitResponse": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "output",
          "request_id"
        ],
        "properties": {
          "output": {
            "type": "object",
            "additionalProperties": false,
            "required": [
              "task_id"
            ],
            "properties": {
              "task_id": {
                "type": "string",
                "description": "Unique asynchronous task identifier."
              }
            }
          },
          "request_id": {
            "type": "string",
            "description": "Unique request identifier."
          }
        }
      },
      "DoubaoSeedance20260628TaskStatusResponse": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "output",
          "request_id"
        ],
        "properties": {
          "output": {
            "$ref": "#/components/schemas/DoubaoSeedance20260628TaskStatusOutput"
          },
          "usage": {
            "$ref": "#/components/schemas/DoubaoSeedance20260628Usage"
          },
          "request_id": {
            "type": "string",
            "description": "Unique request identifier."
          }
        }
      },
      "DoubaoSeedance20260628TaskStatusOutput": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "task_id",
          "task_status"
        ],
        "properties": {
          "task_id": {
            "type": "string",
            "description": "Unique asynchronous task identifier."
          },
          "task_status": {
            "$ref": "#/components/schemas/DoubaoSeedance20260628TaskStatus"
          },
          "urls": {
            "type": "array",
            "description": "Video result URL list.",
            "items": {
              "type": "string",
              "format": "uri"
            }
          },
          "submit_time": {
            "type": "integer",
            "format": "int64",
            "description": "Task submission Unix timestamp in seconds."
          },
          "finish_time": {
            "type": "integer",
            "format": "int64",
            "description": "Task completion Unix timestamp in seconds."
          },
          "error_message": {
            "type": "string",
            "description": "Error message returned when the task fails."
          }
        }
      },
      "DoubaoSeedance20260628TaskStatus": {
        "type": "string",
        "description": "Current asynchronous task status.",
        "enum": [
          "Pending",
          "Running",
          "Success",
          "Failure",
          "Expired"
        ]
      },
      "DoubaoSeedance20260628Usage": {
        "type": "object",
        "additionalProperties": false,
        "properties": {
          "duration": {
            "type": "integer",
            "description": "Video duration in seconds."
          },
          "completion_tokens": {
            "type": "integer",
            "description": "Number of tokens charged for the generated output video."
          },
          "total_tokens": {
            "type": "integer",
            "description": "Total tokens consumed by this request. Video generation models do not count input tokens, so `total_tokens` equals `completion_tokens`."
          }
        }
      },
      "DoubaoSeedance20260628ErrorResponse": {
        "type": "object",
        "additionalProperties": true,
        "required": [
          "error"
        ],
        "properties": {
          "error": {
            "$ref": "#/components/schemas/DoubaoSeedance20260628ErrorObject"
          },
          "request_id": {
            "type": "string",
            "description": "Unique request identifier, if available."
          }
        }
      },
      "DoubaoSeedance20260628ErrorObject": {
        "type": "object",
        "additionalProperties": true,
        "required": [
          "message",
          "type"
        ],
        "properties": {
          "message": {
            "type": "string",
            "description": "Error message."
          },
          "type": {
            "type": "string",
            "description": "Error type."
          },
          "code": {
            "type": [
              "string",
              "null"
            ],
            "description": "Error code."
          },
          "param": {
            "type": [
              "string",
              "null"
            ],
            "description": "Request parameter related to the error."
          }
        }
      }
    },
    "examples": {
      "DoubaoSeedance20260628InvalidParameterError": {
        "summary": "Invalid parameter error",
        "value": {
          "error": {
            "message": "Invalid param",
            "type": "invalid_request_error",
            "code": "param_error",
            "param": "parameters.duration"
          },
          "request_id": "request_id"
        }
      }
    }
  }
}
```