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Seedance 2 VIP Extend Video: AI Video Generator

SD 2.0 VIP Extend Video continues a generated video seamlessly. Selectable 720p or 1080p resolution; price scales accordingly. SD 2.0 VIP Extend Video continues an existing SD 2.0 generated video seamlessly at 720p. Provide the original request ID and an optional prompt to guide the extension — the model preserves visual style, motion, characters, and audio consistency across the new segment. Optional image, video, and audio references can be supplied to steer the extension: user-supplied references map to @image2…@image9, @video1…@video3, @audio1…@audio3 in the prompt (the source video's last frame is always @image1). Selectable output resolution (720p/1080p) — price scales with the resolution chosen.

Interactive model controls

SD 2.0 VIP Extend Video continues an existing SD 2.0 generated video seamlessly at 720p. Provide the original request ID and an optional prompt to guide the extension — the model preserves visual style, motion, characters, and audio consistency across the new segment. Optional image, video, and audio references can be supplied to steer the extension: user-supplied references map to @image2…@image9, @video1…@video3, @audio1…@audio3 in the prompt (the source video's last frame is always @image1). Selectable output resolution (720p/1080p) — price scales with the resolution chosen.

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Overview

About this model

SD 2.0 VIP Extend Video continues an existing SD 2.0 generated video seamlessly, preserving visual style, motion physics, character identity, and native audio across the extension. Provide the original request ID and an optional prompt to guide the new segment. Output resolution is selectable directly on this endpoint — 720p or 1080p — via the resolution parameter, and price scales with your choice. Ideal for building longer narratives, adding follow-up scenes, or exploring alternate continuations of a generated clip.

1Narrative Expansion: Continue a generated scene to build a longer story sequence.
2Scene Exploration: Generate alternate endings or continuations from the same starting video.
3Social Media: Extend short clips into longer-form content without regenerating from scratch.
4Filmmaking: Chain multiple extend operations to build multi-shot sequences with consistent style.
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Pricing & Value

Cost analysis

muapiapp$0.21-$0.675/sec (720p-1080p)

Price scales with resolution and quality tier, plus a surcharge per reference video clip.

Fal.aiNot available

Fal.ai does not currently expose a managed SD 2.0 video extend endpoint.

ReplicateNot available

Replicate does not currently expose a managed SD 2.0 video extend endpoint.

** Competitor pricing is estimated based on similar model architectures and usage tiers.

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Technical Details

Configuration schema

Request Idstring

Request ID of the original Seedance 2.0 video generation.

Default Valuecab9517f-1818-4910-8d66-292701c78c2d
Promptstring

Optional prompt to guide the extension. Reference additional images with @image2…@image9, videos with @video1…@video3, and audio with @audio1…@audio3 — the source video's last frame is always @image1.

Default Value
Image URLsarray

Up to 8 additional reference image URLs (JPEG/PNG/WebP). Each Nth image corresponds to @image(N+1) in the prompt (the source video's last frame is @image1).

Default Valueundefined
Video Reference URLsarray

Up to 3 reference video clip URLs (MP4, max 15s each). Each Nth video corresponds to @videoN in the prompt.

Default Valueundefined
Audio Reference URLsarray

Up to 3 reference audio clip URLs (MP3/WAV, total max 15s). Each Nth audio corresponds to @audioN in the prompt.

Default Valueundefined
Aspect RatioEnum (6 options)

Output video aspect ratio (only used when reference images/videos/audio are provided).

Default Value16:9
Duration (seconds)int

Length of the extension clip in seconds.

Default Value5
ResolutionEnum (2 options)

Output resolution. Price scales with resolution: 720p is cheapest, 1080p is most expensive.

Default Value720p
QualityEnum (2 options)

-

Default Valuebasic
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Implementation Guide

Developer documentation

How to Use SD 2.0 VIP Extend Video

  1. Provide the source request_id: Use the request_id of a completed SD 2.0 VIP generation.

  2. Choose resolution: Set resolution to 720p (default) or 1080p — price scales with your choice and with quality (basic or high).

  3. Optionally guide the extension: Add a prompt and/or reference images, videos, and audio (@image2...@image9, @video1...@video3, @audio1...@audio3 — the source video's last frame is always @image1).

  4. Submit and poll: The API returns a request_id. Poll /predictions/{request_id}/result or use a webhook URL.

curl -X POST https://api.muapi.ai/api/v1/seedance-2-vip-extend \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"request_id":"PRIOR_REQUEST_ID","prompt":"The scene continues","resolution":"1080p"}'
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Common Questions

Frequently asked

Which videos can I extend?

Any completed SD 2.0 generation (VIP or non-VIP) that you have a request_id for.

What resolutions does SD 2.0 VIP Extend support?

Set `resolution` to `720p` (default) or `1080p`. At the basic quality tier that's $0.21/sec vs. $0.4725/sec; at the high tier it's $0.30/sec vs. $0.675/sec, plus a surcharge per reference video clip.

Do I need to provide a prompt?

No, a prompt is optional — omit it to let the model continue the scene naturally.

Will the extended video match the original style?

Yes, the model preserves visual style, motion physics, character identity, and native audio from the source video.

Does the dedicated -1080p endpoint still work?

Yes, seedance-2-vip-extend-1080p remains fully live, but the base seedance-2-vip-extend endpoint now covers both resolutions via the `resolution` parameter.