> ## 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.

# Minimax Video-01

Minimax Video-01 (also known as Hailuo) is an AI video generation model that can generate 6-second, 720p resolution, 25 fps videos. It supports two modes: text-to-video and image-to-video.

<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="prompt" type="string" required={true}>
  The prompt text that guides the desired generation.

  Range: `1 <= x <= 2000`.
</ParamField>

<ParamField body="image_url" type="string" required={false}>
  The URL of the first-frame image used for video generation.
</ParamField>

<ParamField body="enable_prompt_expansion" type="boolean" required={false}>
  Whether to enable prompt optimization.

  Default: `true`.
</ParamField>

## Response

<ResponseField name="task_id" type="string" required={true}>
  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.
</ResponseField>