Seedance 2.0 Fast Video-Edit

Seedance 2.0 Fast Video-Edit is the faster, cheaper tier of Seedance 2.0 Video-Edit. It edits an input video from a natural-language prompt — change lighting, weather, style, environment, or specific elements while preserving subject identity, composition, and motion of the original.

Key Features

Conversational video editing — Describe the change in plain language; the model rewrites the scene while keeping the original motion intact.
Subject and motion preservation — Faces, objects, and camera movement from the input video stay consistent through the edit.
Multi-reference support — Optionally guide style, character identity, or audio with reference images and audio clips.
Native audio synchronization — Generates synchronized audio in a single pass.
Faster, cheaper — ~19% cheaper than the standard Seedance 2.0 Video-Edit at every resolution.

Parameters

Parameter	Required	Description
prompt	Yes	Describe the edit. The prefix `Edit the input video.` is added automatically.
video	Yes	Input video URL. Videos longer than 15 s are trimmed to 15 s.
reference_images	No	Optional reference images for style or character guidance.
reference_audios	No	Optional reference audio for audio guidance.
duration	No	Output length in seconds (4-15). Auto-detected from the input video if not specified.
aspect_ratio	No	`16:9`, `9:16`, `4:3`, `3:4`, `1:1`, `21:9`. Adapts to the input if not specified.
resolution	No	`480p`, `720p` (default), or `1080p`.
enable_web_search	No	Enable web search for real-time context.

How to Use

Upload the input video. Anything longer than 15 s is trimmed to the first 15 s automatically.
Write the edit prompt. Describe the change you want — the prefix Edit the input video. is added for you.
(Optional) Add references. Reference images can constrain style or identity; reference audio can constrain the soundtrack.
(Optional) Set a duration. Auto-detected from the input video length if not provided.
Run. Receive the edited video with synchronized audio.

Pricing

Billed per second across input duration + output duration. Input duration is capped at 15 s.

Resolution	Per second
480p	$0.065
720p	$0.13
1080p	$0.325

Examples (input 5 s, output 5 s = 10 billed seconds):

Resolution	Cost
480p	$0.65
720p	$1.30
1080p	$3.25

Examples (input 12 s, output 12 s = 24 billed seconds):

Resolution	Cost
480p	$1.56
720p	$3.12
1080p	$7.80

Notes

Inputs longer than 15 s are trimmed to 15 s before editing — billing reflects the trimmed length.
Auto-detected duration matches the input length (rounded up), clamped to the 4-15 s range.
Native audio generation is included.

Related Models

Seedance 2.0 Video-Edit — Standard tier of this model.
Seedance 2.0 Fast Image-to-Video — Fast image-to-video generation.
Seedance 2.0 Fast Text-to-Video — Fast text-to-video generation.

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README