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POST
/
v3
/
async
/
kling-v2.1-t2v-master
Kling V2.1 Master Text-to-Video
curl --request POST \
  --url https://api.highwayapi.ai/v3/async/kling-v2.1-t2v-master \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: <content-type>' \
  --data '
{
  "prompt": "<string>",
  "duration": "<string>",
  "aspect_ratio": "<string>",
  "guidance_scale": 123,
  "negative_prompt": "<string>"
}
'
{
  "task_id": "<string>"
}
Kling V2.1 Text-to-Video is the latest-generation text-to-video model developed by the Kuaishou AI team. It can generate high-quality, cinematic short videos from input text with a single click. Compared with Kling 2.0, version 2.1 delivers major breakthroughs in motion fluidity, visual consistency, prompt understanding, and more.
This is an asynchronous API and only returns the task_id of the asynchronous task. You should use this task_id to request the Query Task Result API to retrieve the video generation result.

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Request Headers

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Content-Type
string
required
Enum value: application/json
​
Authorization
string
required
Bearer authentication format: Bearer {{API Key}}.

​
Request Body

​
prompt
string
required
The positive text prompt that guides generation. Maximum length: 2500 characters.
​
duration
string
default:"5"
The duration of the generated video (in seconds).Available values: 5, 10
​
aspect_ratio
string
default:"16:9"
The aspect ratio of the output video.Available values: 16:9, 9:16, 1:1
​
guidance_scale
number
The guidance strength parameter, which controls how closely the generated content matches the prompt.Value range: 0 to 1
Step: 0.1
​
negative_prompt
string
The negative prompt, used to avoid undesired content. Maximum length: 2500 characters.

​
Response

​
task_id
string
required
The task_id of the asynchronous task. You should use this task_id to request the Query Task Result API to obtain the generation result