提交视频生成任务

以下内容来自 Apifox 快照，可能包含兼容层字段或旧示例；公开调用请以本页的协议说明和当前模型列表为准。

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  "name": "提交视频生成任务",
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  "description": "官方文档：https://docs.dev.runwayml.com/api/#tag/Start-generating/paths/~1v1~1image_to_video/post",
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        "promptImage": {
          "description": "必填，HTTPS URL或数据URI，包含编码图像作为生成视频的第一帧",
          "type": "string"
        },
        "model": {
          "type": "string",
          "description": "必填，指定使用的模型变体，可选值：\"gen4_turbo\"或\"gen3a_turbo\""
        },
        "ratio": {
          "type": "string",
          "description": " 必填，输出视频分辨率，格式为\"宽度:高度\"，不同模型支持不同分辨率"
        },
        "seed": {
          "description": "可选，随机种子值(0-4294967295)，相同种子对相同请求产生相似结果",
          "type": "integer"
        },
        "promptText": {
          "description": "可选，字符串(≤1000字符)，详细描述期望在视频中出现的内容",
          "type": "string"
        },
        "duration": {
          "description": "可选，视频时长(秒)，可选值：5或10，默认为10",
          "type": "integer"
        }
      },
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    "mediaType": "",
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  "createdAt": "2026-08-02T03:53:34.000Z",
  "updatedAt": "2026-08-06T12:15:55.000Z",
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