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POST
/
v3
/
async
/
kling-v3.0-pro-t2v
Kling v3.0 Pro Text-to-Video
curl --request POST \
  --url https://api.novita.ai/v3/async/kling-v3.0-pro-t2v \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: <content-type>' \
  --data '
{
  "sound": true,
  "prompt": "<string>",
  "duration": 123,
  "cfg_scale": 123,
  "aspect_ratio": "<string>",
  "multi_prompt": [
    {}
  ],
  "negative_prompt": "<string>"
}
'
{
  "task_id": "<string>"
}

Documentation Index

Fetch the complete documentation index at: https://novita.ai/docs/llms.txt

Use this file to discover all available pages before exploring further.

Kling v3.0 Pro Text-to-Video generates high-quality videos from text prompts with natural motion and smooth scene dynamics. Supports flexible duration from 3 to 15 seconds, audio-video co-generation, and multi-shot video generation.
This is an asynchronous API; only the task_id will be returned. You should use the task_id to request the Task Result API to retrieve the video generation results.

​
Request Headers

​
Content-Type
string
required
Supports: application/json
​
Authorization
string
required
Bearer authentication format, for example: Bearer {{API Key}}.

​
Request Body

​
sound
boolean
default:false
Whether to generate audio simultaneously when generating video.
​
prompt
string
required
Text prompt for video generation describing scene motion, camera moves, actions, voice style, ambience, and sound effects; must not exceed 2500 characters. Mutually exclusive with multi_prompt.Length limit: 0 - 2500
​
duration
integer
default:5
Duration of generated video in seconds. Supports flexible duration from 3 to 15 seconds.Value range: [3, 15]
​
cfg_scale
number
Controls the flexibility of video generation. Higher values result in generated content more closely following the prompt; lower values produce more natural motion.Value range: [0, 1]
​
aspect_ratio
string
default:"16:9"
Aspect ratio of the generated video.Optional values: 16:9, 9:16, 1:1
​
multi_prompt
array
List of prompts for multi-shot video generation. Divides video into multiple shots. Mutually exclusive with prompt.
​
negative_prompt
string
Negative prompt specifying elements to avoid in visuals and audio; must not exceed 2500 characters.Length limit: 0 - 2500

​
Response

​
task_id
string
required
Use the task_id to request the Task Result API to retrieve the generated outputs.