> ## 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.

# PixVerse C1 Text-to-Video

PixVerse C1 text-to-video model supports generating high-quality videos from text descriptions, with multiple resolutions and aspect ratios, optional synchronized audio generation, and video durations from 1 to 15 seconds.

<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 generated 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="prompt" type="string" required={true}>
  The text description for video generation, including information such as the scene, motion, camera style, and atmosphere.

  Length limit: 0 - 2048
</ParamField>

<ParamField body="duration" type="integer" default={5}>
  The duration of the generated video (in seconds), ranging from 1 to 15 seconds.

  Value range: \[1, 15]
</ParamField>

<ParamField body="resolution" type="string" default="720p">
  The resolution of the generated video.

  Allowed values: `360p`, `540p`, `720p`, `1080p`
</ParamField>

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

  Allowed values: `16:9`, `9:16`, `4:3`, `3:4`, `1:1`, `2:3`, `3:2`, `21:9`
</ParamField>

<ParamField body="generate_audio_switch" type="boolean" default={false}>
  Whether to generate audio at the same time when generating the video.
</ParamField>

## Response

<ResponseField name="task_id" type="string" required={true}>
  Use task\_id to request the [Get Task Result API](/en/docs/models/reference-get-async-task-result) to retrieve the generated output.
</ResponseField>