视频延长
POST
/kling/v1/videos/video-extend
网站中的模型与调用示例
视频延长
2、此接口要求传入任务id和视频id
此接口属于子任务，需要在父任务账号上使用，请尽快操作避免资源包过期。
官方文档：https://docs.qingque.cn/d/home/eZQClW07IFEuX1csc-VejdY2M#section=h.8fzev2i9nkje
请求参数
{
"contentType": "application/json",
"properties": {
"prompt": {
"description": "不能超过2500个字符词",
"title": "正向文本提示词",
"type": "string"
},
"video_id": {
"description": "支持通过文本、图片和视频延长生成的视频的ID（原视频不能超过3分钟）",
"title": "视频ID",
"type": "string"
}
},
"required": [
"video_id"
]
}请求示例 · 示例 1
{
"prompt": "场景放大",
"video_id": "827942411241803822"
}响应示例 · 成功示例
{
"code": 0,
"data": {
"created_at": 1762419870395,
"task_id": "815336423632572487",
"task_status": "submitted",
"updated_at": 1762419870395
},
"message": "SUCCEED",
"request_id": "d57c7fa4-9f49-4bd5-8fb1-a840bb466d3d"
}视频延长
请求参数
{
"contentType": "application/json",
"properties": {
"callback_url": {
"type": "string"
},
"cfg_scale": {
"description": "提示词参考强度 取值范围：[0,1]，数值越大参考强度越大",
"type": "number",
"x-i18n": {
"en-US": {
"description": "Prompt reference strength range [0,1]; higher = stronger"
}
}
},
"negative_prompt": {
"description": "负向文本提示词",
"type": "string",
"x-i18n": {
"en-US": {
"description": "negative text prompt"
}
}
},
"prompt": {
"description": "正向文本提示词 不能超过2500个字符词",
"type": "string",
"x-i18n": {
"en-US": {
"description": "Positive text prompt max 2500 characters"
}
}
},
"video_id": {
"description": "视频id 支持通过文本、图片和视频延长生成的视频的ID（原视频不能超过3分钟）",
"type": "string",
"x-i18n": {
"en-US": {
"description": "Video ID for extend (text/image/video); original video ≤3 minutes"
}
}
}
},
"required": [
"video_id",
"prompt"
]
}请求示例 · 示例 1
{
"callback_url": "",
"cfg_scale": 0.5,
"negative_prompt": "",
"prompt": "延长动画效果",
"video_id": "828006748715380777"
}请求参数
Header 参数
Body 参数application/json必填
请求示例代码
返回响应
修改于 2026-10-24 18:33:09