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

# Vidu Q3 Turbo Text to Video

Vidu Q3 Turbo Text-to-Video generates high-quality videos with synchronized audio from text descriptions, supporting up to 1080p resolution and 1-16 second duration.

<Tip>
  This is an **async** API that only returns the task\_id of the async task. Use the task\_id to call the [Get Async Task Result API](/docs/models/reference-get-async-task-result) to retrieve the generated result.
</Tip>

## Request Headers

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

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

## Request Body

<ParamField body="seed" type="integer">
  Random seed for reproducible results. When not provided or set to 0, a random number is used.

  Range: \[0, 2147483647]
</ParamField>

<ParamField body="audio" type="boolean" default={true}>
  Whether to enable audio-video generation (including dialogue and sound effects). false: output silent video; true: output video with audio. Only supported by Q3 series models.
</ParamField>

<ParamField body="prompt" type="string" required={true}>
  Text description for video generation, up to 5000 characters.

  Length limit: 0 - 5000
</ParamField>

<ParamField body="wm_url" type="string">
  Watermark content image URL. When not provided, the default watermark is used ("AI Generated").
</ParamField>

<ParamField body="duration" type="integer" default={5}>
  Video duration (seconds). Range: 1-16, default: 5 seconds.

  Range: \[1, 16]
</ParamField>

<ParamField body="off_peak" type="boolean" default={false}>
  Off-peak mode. true: generate video during off-peak hours at lower credit cost, processed within 48 hours; false: generate video immediately.
</ParamField>

<ParamField body="watermark" type="boolean" default={false}>
  Whether to add a watermark. true: add watermark; false: no watermark. Default: no watermark.
</ParamField>

<ParamField body="resolution" type="string" default="720p">
  Output video resolution.

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

<ParamField body="wm_position" type="integer" default={3}>
  Watermark position: 1=top-left, 2=top-right, 3=bottom-right, 4=bottom-left. Default: 3 (bottom-right).

  Range: \[1, 4]
</ParamField>

<ParamField body="aspect_ratio" type="string" default="16:9">
  Output video aspect ratio.

  Possible values: `16:9`, `9:16`, `4:3`, `3:4`, `1:1`
</ParamField>

## Response

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