> ## Documentation Index
> Fetch the complete documentation index at: https://novita.ai/docs/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 **asynchronous** API; only the **task\_id** will be returned. You should use the **task\_id** to request the [**Task Result API**](/api-reference/model-apis-task-result) to retrieve the video generation results.
</Tip>

## Request Headers

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

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

## Request Body

<ParamField body="seed" type="integer">
  Random seed for reproducible results. Use 0 or omit for random.

  Value range: \[0, 2147483647]
</ParamField>

<ParamField body="audio" type="boolean" default={true}>
  Whether to enable synchronized audio generation (dialogue and sound effects). false: output silent video; true: output video with sound. Q3 series models only.
</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 image URL. When not provided, uses default AI-generated watermark.
</ParamField>

<ParamField body="duration" type="integer" default={5}>
  Video duration in seconds, range 1-16, default 5 seconds.

  Value range: \[1, 16]
</ParamField>

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

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

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

  Optional 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).

  Value range: \[1, 4]
</ParamField>

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

  Optional 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 request the [Task Result API](/api-reference/model-apis-task-result) to retrieve the generated outputs.
</ResponseField>