Video Generation

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Note 1: Video extension refers to extending the duration of text-to-video/image-to-video results. Each extension can add 4 to 5 seconds, and the model and mode used cannot be selected; they must be the same as the source video.

Note 2: Video extension is currently not supported for videos generated by the V1.5 model.

Note 3: Videos that have been extended can be extended again, but the total video duration cannot exceed 3 minutes.

Protocol	Request URL	Request Method	Request Format	Response Format
https	https://api.klingai.com/v1/videos/video-extend	POST	application/json	application/json

Request Header

Field	Value	Description
Content-Type	application/json	Data Exchange Format
Authorization	Authentication information, refer to API authentication	Authentication information, refer to API authentication