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

# Studio Duplicate

> Copy a time range and insert it into the song

Copy `[start_s, end_s)` and insert it at `insert_at_s` (defaults to the end of the selection). Poll [Get Task Status](/api-reference/suno/task) until `success`.

<Info>
  **Free** (0 credits). Account is resolved from `clip_id`.
</Info>

Part of the [Studio Editing](/api-reference/suno/studio) group.

## Parameters

| Field         | Type   | Required | Description                                          |
| ------------- | ------ | -------- | ---------------------------------------------------- |
| `clip_id`     | string | Yes      | Source clip                                          |
| `start_s`     | number | Yes      | Range start to copy (seconds)                        |
| `end_s`       | number | Yes      | Range end to copy (seconds)                          |
| `insert_at_s` | number | No       | Insert position (seconds); defaults to selection end |
| `title`       | string | No       | Title for the new song                               |

## Example

```bash theme={null}
curl -X POST https://api.mountsea.ai/suno/v2/studio/duplicate \
  -H "Authorization: Bearer your-api-key" \
  -H "Content-Type: application/json" \
  -d '{
    "clip_id": "5a3c023f-d1ed-4a85-b61e-168dde2b6659",
    "start_s": 20,
    "end_s": 28,
    "insert_at_s": 28,
    "title": "Double Chorus"
  }'
```


## OpenAPI

````yaml POST /suno/v2/studio/duplicate
openapi: 3.0.0
info:
  title: Suno AI
  description: API documentation for Suno AI
  version: 1.0.0
  contact: {}
servers:
  - url: https://api.mountsea.ai
    description: API Gateway
security: []
tags:
  - name: suno
    description: ''
  - name: suno/studio
    description: Studio Song Editor（与 audio/crop|fade|reverse 独立）
paths:
  /suno/v2/studio/duplicate:
    post:
      tags:
        - suno/studio
      summary: Studio duplicate
      description: 把 [start_s, end_s) 复制到 insert_at_s（默认选区结尾）并导出。通过 clip_id 同账号选号。积分 0。
      operationId: ApiStudioController_duplicate
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/StudioDuplicateDto'
      responses:
        '201':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TaskIdDto'
      security:
        - bearerAuth: []
components:
  schemas:
    StudioDuplicateDto:
      type: object
      properties:
        clip_id:
          type: string
          description: 原歌曲 clip_id
        start_s:
          type: number
          minimum: 0
          description: 要复制的区间起始秒
        end_s:
          type: number
          minimum: 0
          description: 要复制的区间结束秒
        insert_at_s:
          type: number
          minimum: 0
          description: 插入位置（秒）；不传则默认紧跟选区结尾
        title:
          type: string
          description: 新歌标题
      required:
        - clip_id
        - start_s
        - end_s
    TaskIdDto:
      type: object
      properties:
        taskId:
          type: string
          description: task id. Use this id to query task status.
          example: 15c257ff-43f7-4678-bd41-202ad6b8488b
      required:
        - taskId
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT

````