kling-v3-4k-text-to-video

POST

/openapi/v2/kling-v3-4k/text-to-video

Kling V3.0 4K is Kuaishou's premium text-to-video model delivering 4K cinematic quality from natural language prompts. Supports flexible 3-15 second duration, multiple aspect ratios, optional synchronized audio generation, and negative prompt control. Ideal for premium marketing, brand campaigns, and cinematic storytelling.

Request

Authorization

Header Params

Body Params application/jsonRequired

Example

{
    "prompt": "Late-night last subway train. A man in a suit sits by the window, tie loose, leaning his forehead on his hand. Train lights flicker across his face in passing intervals. His eyes are closed, lashes slightly trembling.",
    "duration": "5",
    "aspectRatio": "16:9",
    "cfgScale": 0.5,
    "sound": false,
    "shotType": "customize"
}

Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location --request POST 'https://www.runninghub.ai/openapi/v2/kling-v3-4k/text-to-video' \
--header 'Authorization: Bearer [Your API KEY]' \
--header 'Authorization: Bearer [Your API KEY]' \
--header 'Content-Type: application/json' \
--data-raw '{
    "prompt": "Late-night last subway train. A man in a suit sits by the window, tie loose, leaning his forehead on his hand. Train lights flicker across his face in passing intervals. His eyes are closed, lashes slightly trembling.",
    "duration": "5",
    "aspectRatio": "16:9",
    "cfgScale": 0.5,
    "sound": false,
    "shotType": "customize"
}'

Responses

🟢200成功

application/json

Task result query endpoint: /openapi/v2/query

Body

Examples

Submit response exampleTask success response example

{
    "taskId": "2013508786110730241",
    "status": "RUNNING",
    "errorCode": "",
    "errorMessage": "",
    "results": null,
    "clientId": "f828b9af25161bc066ef152db7b29ccc",
    "promptTips": "{\"result\": true, \"error\": null, \"outputs_to_execute\": [\"4\"], \"node_errors\": {}}"
}

Modified at 2026-04-30 12:00:08

kling-video-o1/text-to-video

kling-v2.5-turbo-pro/text-to-video