多图参考生视频

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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        "image_list": {
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          "items": {
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          "description": "最多支持4张图片"
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          "description": "正向文本提示词\n不能超过2500个字符"
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        "negative_prompt": {
          "type": "string",
          "description": "负向文本提示词"
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          "description": "生成视频的模式\n枚举值：std，pro\n其中std：标准模式（标准），基础模式，性价比高\n其中pro：专家模式（高品质），高表现模式，生成视频质量更佳"
        },
        "duration": {
          "type": "string",
          "description": "生成视频时长，单位s\n枚举值：5，10"
        },
        "aspect_ratio": {
          "type": "string",
          "description": "生成图片的画面纵横比（宽:高）"
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