Create Video Generation Task (doubao-2.5)

Endpoint: POST https://4zapi.com/api/v3/contents/generations/tasks

Actual request: POST /api/v3/contents/generations/tasks https://www.volcengine.com/docs/82379/1520757?lang=en The model is fixed to doubao-seedance-2-5-260628. Supported resolutions are 480p, 720p, and 1080p; 4k is not supported, and the default is 720p if not specified. The duration can be between 4–30, or -1 (chosen by the model). For reference videos, please set omni_reference_task_type=reference; if deemed a video edit, the ratio can only be adaptive, and the duration can only be -1.

Request body (application/json)

• content (array<object>, required)
• model (string, required): Fixed to doubao-seedance-2-5-260628
• duration (integer): 4–30, or -1. Video editing tasks must be -1.
• generate_audio (boolean)
• omni_reference_task_type (string): auto, reference, edit, extend. It is recommended to use reference when there is a reference video and specified aspect ratio and duration.
• output_format (string): mp4 or mov, only for Seedance 2.5. Default is mp4.
• ratio (string): 16:9, 4:3, 1:1, 3:4, 9:16, 21:9, adaptive. Editing, extending, first frame, and first-last frame only support adaptive.
• resolution (string): 480p, 720p, 1080p. Default is 720p, 4k is not supported.
• watermark (boolean)

Request example

{
  "content": [
    {
      "text": "全程使用视频1的第一视角构图，全程使用音频1作为背景音乐。第一人称视角果茶宣传广告，seedance牌「苹苹安安」苹果果茶限定款；首帧为图片1，你的手摘下一颗带晨露的阿克苏红苹果，轻脆的苹果碰撞声；2-4 秒：快速切镜，你的手将苹果块投入雪克杯，加入冰块与茶底，用力摇晃，冰块碰撞声与摇晃声卡点轻快鼓点，背景音：「鲜切现摇」；4-6 秒：第一人称成品特写，分层果茶倒入透明杯，你的手轻挤奶盖在顶部铺展，在杯身贴上粉红包标，镜头拉近看奶盖与果茶的分层纹理；6-8 秒：第一人称手持举杯，你将图片2中的果茶举到镜头前（模拟递到观众面前的视角），杯身标签清晰可见，背景音「来一口鲜爽」，尾帧定格为图片2。背景声音统一为女生音色。",
      "type": "text"
    },
    {
      "image_url": {
        "url": "https://ark-project.tos-cn-beijing.volces.com/doc_image/r2v_tea_pic1.jpg"
      },
      "role": "reference_image",
      "type": "image_url"
    },
    {
      "image_url": {
        "url": "https://ark-project.tos-cn-beijing.volces.com/doc_image/r2v_tea_pic2.jpg"
      },
      "role": "reference_image",
      "type": "image_url"
    },
    {
      "role": "reference_video",
      "type": "video_url",
      "video_url": {
        "url": "https://pro.filesystem.site/cdn/20260403/0e80a635b859e7716671a40d836135.mp4"
      }
    },
    {
      "audio_url": {
        "url": "https://ark-project.tos-cn-beijing.volces.com/doc_audio/r2v_tea_audio1.mp3"
      },
      "role": "reference_audio",
      "type": "audio_url"
    }
  ],
  "duration": 11,
  "generate_audio": true,
  "model": "doubao-seedance-2-5-260628",
  "omni_reference_task_type": "reference",
  "output_format": "mp4",
  "ratio": "21:9",
  "resolution": "720p",
  "watermark": false
}