> ## 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 Start-End Frame to Video

Vidu Q3 Turbo Start-End Frame to Video generates high-quality videos from start and end frame images, with text-guided motion interpolation, supporting up to 1080p resolution.

<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. Set to 0 for random.
</ParamField>

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

<ParamField body="images" type="array" required={true}>
  Two image URLs or Base64-encoded images. The first is the start frame, the second is the end frame. Supported formats: png, jpeg, jpg, webp. Maximum 50MB per image. The resolutions of the start and end frame images must be similar (start/end ratio between 0.8 and 1.25). Aspect ratio must be less than 1:4 or greater than 4:1.

  Array length: 2 - 2
</ParamField>

<ParamField body="is_rec" type="boolean">
  Whether to use a recommended prompt. When enabled, the system automatically generates a prompt.
</ParamField>

<ParamField body="prompt" type="string">
  Text describing the desired video motion between the start and end frames, up to 1500 characters.

  Length limit: 0 - 1500
</ParamField>

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

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

<ParamField body="off_peak" type="boolean" default={false}>
  Whether to use off-peak mode. Tasks will be processed within 48 hours at a lower cost.
</ParamField>

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

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