---
title: "sd-2-vip-extend-1080p (best)"
method: POST
path: "/api/v1/seedance-2-vip-extend-1080p"
tags: ["Video: Edit & Effects"]
---

# sd-2-vip-extend-1080p (best)

`POST /api/v1/seedance-2-vip-extend-1080p`

## Request

- Base URL: `https://api.muapi.ai`
- URL: `https://api.muapi.ai/api/v1/seedance-2-vip-extend-1080p`
- Auth: one of:
  - API key in header `x-api-key`
  - OAuth 2 (client credentials, token URL `https://api.muapi.ai/oauth/token`)

Extend a previously-generated Seedance 2 video at 1080p (SD-2 VIP). Input: request_id of a completed Seedance 2 generation + optional prompt, reference images, video clips, audio clips (same @image/@video/@audio prompt-reference syntax as sd-2-vip-extend). Output: extended 1080p video. Use for: continuing scenes at full-HD; requires a prior Seedance 2 request_id.

## Query parameters

- `webhook` string
- `team_id` integer, nullable

## Headers

- `x-api-key` string
- `x-embed-code` string, nullable
- `x-agent-embed-code` string, nullable
- `x-whitelabel-studio` string, nullable
- `authorization` string, nullable

## Request body

- Seedance2ExtendRequest
  - `request_id` string, required
  - `prompt` string, nullable: Optional prompt to guide the extension. Reference additional images with @image2…@image9, videos with @video1…@video3, and audio with @audio1…@audio3 (the auto-extracted last frame of the source video is always @image1).
  - `images_list` string[], nullable: Up to 8 additional reference images. They map to @image2…@image9 in the prompt (@image1 is the source video's last frame).
  - `video_files` string[], nullable: Up to 3 reference video clips (MP4, max 15s each). Referenced in prompt via @video1…@video3.
  - `audio_files` string[], nullable: Up to 3 reference audio files (MP3/WAV, total max 15s). Referenced in prompt via @audio1…@audio3.
  - `webhook_url` string, uri, nullable
  - `aspect_ratio` '21:9' | '16:9' | '4:3' | '1:1' | '3:4' | '9:16'
  - `quality` 'high' | 'basic'
  - `duration` integer
  - `resolution` '720p' | '1080p': Output resolution. Price scales with resolution — see the model's pricing table.

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/muapi/apis/muapi-api.md) · [All operations](https://skmtc.dev/muapi/apis/muapi-api/llms.txt) · [OpenAPI document](https://skmtc.dev/muapi/apis/muapi-api/revisions/e4b7374381e5?raw)