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

# Kling Pro

> Generate a video from text and an optional input image with Kling

## Overview

Generate a video from text and an optional input image with Kling

* **Output Type**: video
* **Base Model**: kling
* **Estimated Cost**: quality == "high" ? 25 \* duration : 10 \* duration credits
* **Handler**: replicate

## Parameters

### Required Parameters

<ParamField body="prompt" type="string" required>
  Text prompt

  <Tip>
    Describe the video you want to generate in detail.
  </Tip>

  * Label: Prompt
</ParamField>

<ParamField body="aspect_ratio" type="string" required default="1:1">
  Width/height (ignored when using a starting image)

  * Label: Aspect ratio
  * Options: `16:9`, `1:1`, `9:16`
</ParamField>

<ParamField body="quality" type="string" required default="medium">
  The quality of the Kling video model.

  <Tip>
    High is highest quality but slow and expensive. Medium is good for most cases. Low is faster and cheaper but lower quality.
  </Tip>

  * Label: Quality
  * Options: `high`, `medium`, `low`
</ParamField>

<ParamField body="duration" type="integer" required default={5}>
  Duration of the video in seconds

  * Label: Duration
  * Options: `5`, `10`
</ParamField>

### Optional Parameters

<ParamField body="negative_prompt" type="string">
  Negative text prompt

  <Tip>
    Optionally describe anything you do *not* want in the video.
  </Tip>

  * Label: Negative prompt
</ParamField>

<ParamField body="start_image" type="image">
  First frame of the video to use as a keyframe

  <Tip>
    If using quality=medium, this is required. Pure txt2video is only supported for quality=high or quality=low.
  </Tip>

  * Label: Starting image
</ParamField>

<ParamField body="end_image" type="image">
  Last frame of the video to use as a keyframe (quality=medium only, not supported for high or low)

  * Label: Ending image
</ParamField>

<ParamField body="cfg_scale" type="float" default={0.5}>
  Flexibility in video generation; The higher the value, the lower the model's degree of flexibility, and the stronger the relevance to the user's prompt.

  * Label: Guidance scale
  * Minimum: 0
  * Maximum: 1
</ParamField>