> ## 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.

# Midjourney Reroll

Use the Midjourney reroll feature to regenerate an already generated image task and obtain different result variations. This API uses asynchronous processing, so the client needs to query the final generated result using the task\_id.

## 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="task_id" type="string" required={true}>
  Task ID used to specify the original task to reroll.
</ParamField>

## Response Parameters

<ResponseField name="task_id" type="string" required={true}>
  The task\_id of the asynchronous task. You should use this task\_id to request the [Query Task Result API](/en/docs/models/reference-get-async-task-result) to obtain the generated result.
</ResponseField>