> ## 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 V2.5 Turbo Image-to-Video

Kling 2.5 Turbo Image-to-Video can generate cinematic videos from a single image and a prompt, with smooth motion and content that closely matches the intended direction. It features a new text-temporal engine, enhanced motion performance, and faster inference speed.

<Tip>
  This is an **asynchronous** API and only returns 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="image" type="string" required={true}>
  The first-frame image for the video. Supported image formats include `.jpg`, `.jpeg`, and `.png`. The image file size must not exceed 10MB, and the resolution must be at least 300\*300 pixels.
</ParamField>

<ParamField body="prompt" type="string" required={true}>
  The positive prompt text for generating the video; must not exceed 2500 characters.
</ParamField>

<ParamField body="duration" type="string" default="5">
  The duration of the generated video (in seconds).

  Available values: `5`, `10`
</ParamField>

<ParamField body="cfg_scale" type="number" default={0.5}>
  Controls the flexibility of video generation. The higher the value, the more closely the generated content adheres to the prompt, and the lower the creative freedom.

  Value range: 0 to 1
</ParamField>

<ParamField body="mode" type="string" default="pro">
  Video generation mode. Available values:

  * `pro`: Professional mode
</ParamField>

<ParamField body="negative_prompt" type="string">
  Negative prompt, used to avoid undesired content; must not exceed 2500 characters.
</ParamField>

## Response Information

<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>