> ## 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.

# Runway

> Text-guided, realistic image animation with Runway Gen 4 Turbo or Gen 3 Alpha Turbo

## Overview

Text-guided, realistic image animation with Runway Gen 4 Turbo or Gen 3 Alpha Turbo

* **Output Type**: video
* **Base Model**: runway
* **Estimated Cost**: 7.5 \* duration credits
* **Handler**: local

## Parameters

### Required Parameters

<ParamField body="start_image" type="image" required>
  The initial frame of the video

  * Label: Starting image
</ParamField>

<ParamField body="prompt_text" type="string" required>
  The prompt to guide the animation

  <Tip>
    The prompt can be used to guide the animation in a certain direction.
  </Tip>

  * Label: Prompt Text
</ParamField>

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

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

<ParamField body="ratio" type="string" required default="16:9">
  The aspect ratio of the video

  * Label: Ratio
  * Options: `21:9`, `16:9`, `4:3`, `1:1`, `3:4`, `9:16`
</ParamField>

### Optional Parameters

<ParamField body="end_image" type="image">
  Optional ending frame of the video

  <Tip>
    Works only with gen3a\_turbo
  </Tip>

  * Label: Ending image
</ParamField>

<ParamField body="prompt_enhance" type="boolean" default={true}>
  Enhance the prompt according to Runway's prompting guide

  * Label: Enhance prompt
</ParamField>

<ParamField body="model" type="string" default="gen4_turbo">
  Runway base model

  * Label: Model
  * Options: `gen3a_turbo`, `gen4_turbo`
</ParamField>

<ParamField body="seed" type="integer" default="random">
  Set random seed for reproducibility. If blank, will be set to a random value.

  <Tip>
    You should only set this if you want to start from/copy the seed of a previous image. Unless one is specified, leave this blank.
  </Tip>

  * Label: Seed
  * Minimum: 0
  * Maximum: 2147483647
</ParamField>