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Kling v3.0 4K Image-to-Video
The Kling v3.0 4K image-to-video tool converts static images into 4K ultra-high-definition dynamic videos, presenting richer visual details, natural motion, and smooth scene dynamics while maintaining subject consistency. It supports flexible durations from 3 to 15 seconds, synchronized audio-video generation, end-frame control, and multi-shot video generation.
This is an asynchronous API and will only return the task_id of the asynchronous task. You should use this task_id to request the Query Task Result API to retrieve the generated result.

Request Headers

string
required
Enum value: application/json
string
required
Bearer authentication format: Bearer {{API Key}}.

Request Body

string
required
The video’s first-frame image; supports .jpg, .jpeg, and .png. The image file size must not exceed 10MB; both width and height must be >= 300px; the aspect ratio must be between 1:2.5 and 2.5:1.
boolean
default:false
Whether to generate audio at the same time when generating the video.
string
required
The positive prompt text for generating the video. It can describe scene motion, camera movement, actions, speech style, atmosphere, and sound effects; must not exceed 2500 characters.
integer
default:5
The duration of the generated video (in seconds). Supports flexible durations from 3 to 15 seconds.Value range: [3, 15]
number
Controls the flexibility of video generation. The higher the value, the more closely the model-generated content follows the prompt; the lower the value, the more natural the motion effects.Value range: [0, 1]
string
End-frame image URL, used to guide the transition effect. Not compatible with multi_prompt. Supports .jpg, .jpeg, and .png.
string[]
A list of prompts for multi-shot video generation. Divides the video into multiple shots. Mutually exclusive with prompt.
string
Negative prompt, specifying elements to avoid in the visuals and audio; must not exceed 2500 characters.

Response Information

string
required
Use task_id to request the Query Task Result API to retrieve the generated output.