> ## Documentation Index
> Fetch the complete documentation index at: https://docs.jiekou.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# KLING V1.6 Text-to-Video

KLING V1.6 Text-to-Video is an AI text-to-video generation model developed by the Kuaishou AI team. It can transform text descriptions into dynamic 5-second 720p videos, delivering high-quality visual output with enhanced motion and semantic understanding capabilities.

<Tip>
  This is an **asynchronous** API and will only return the asynchronous task's task\_id. You should use this task\_id to request the [Get Task Result API](/en/docs/models/reference-get-async-task-result) to retrieve the video generation result.
</Tip>

## Request Headers

<ParamField header="Content-Type" type="string" required={true}>
  Enum value: `application/json`
</ParamField>

<ParamField header="Authorization" type="string" required={true}>
  Bearer authentication format: Bearer \{\{API Key}}.
</ParamField>

## Request Body

<ParamField body="mode" type="string" required={false}>
  Video generation mode.

  Supported:

  * `Standard`: Fast generation, lower cost, generates 720p videos.

  Default value: `Standard`.
</ParamField>

<ParamField body="prompt" type="string" required={true}>
  The prompt text used to guide generation.

  Value range: `1 <= x <= 2000`.
</ParamField>

<ParamField body="negative_prompt" type="string" required={false}>
  Negative prompt, used to indicate content that the model should avoid generating.

  Value range: `0 <= x <= 2000`.
</ParamField>

<ParamField body="duration" type="integer" required={false}>
  Duration of the generated video (in seconds). Default value: `5`.<br />
  Optional values: `5`, `10`
</ParamField>

<ParamField body="guidance_scale" type="float" required={false}>
  Guidance strength parameter, which controls how closely the generated content adheres to the prompt.

  Value range: `0 <= x <= 1`. Default value: `0.5`.
</ParamField>

## Response

<ResponseField name="task_id" type="string" required={true}>
  The task\_id of the asynchronous task. You should use this task\_id to request the [Get Task Result API](/en/docs/models/reference-get-async-task-result) to obtain the generation result.
</ResponseField>