Seedance 2.5 Flash — Faster AI Video, Same Seedance Look
Seedance 2.5 Flash is the speed-focused tier of ByteDance's Seedance 2.5 family. Generate clips of 4 to 30 seconds at 480p or 720p with synchronized audio, from text, images, video or audio references, and iterate on ideas in a fraction of the wait and cost of a flagship render.
Seedance 2.5 Flash is available on SeeVid now
What Is Seedance 2.5 Flash?
Seedance 2.5 Flash is a faster, lower-priced edition of ByteDance's Seedance 2.5 video model, announced on November 12, 2026. ByteDance positions it as the tier closest to flagship Seedance 2.5 in quality, with roughly twice the generation speed and a lower price per second, built for high-volume work such as testing ad creatives, producing regular footage and exploring ideas before a final render. Like the rest of the family it generates picture and sound together, so dialogue, effects and ambience arrive aligned with the visuals. Flash tops out at 720p, which makes it ideal for drafts, social clips and everyday production, while the flagship Seedance 2.5 remains the choice for 1080p and the most demanding finals. On SeeVid you can use Seedance 2.5 Flash for text-to-video, image-to-video, reference-to-video and video editing, with the same credits, task history and workspace you already use.
Roughly 2x Faster Generation
ByteDance describes Flash as nearly twice as fast as Seedance 2.5. Real speed depends on duration, resolution, references and queue load, but the goal is clear: a shorter loop between writing a prompt and reviewing a clip, so you can test more ideas per hour.
4 to 30 Seconds at 480p or 720p
Pick any whole-second length from 4 to 30 and render at 480p for cheap drafts or 720p for share-ready clips. Aspect ratios include 16:9, 9:16, 1:1, 4:3, 3:4 and 21:9, covering YouTube, Shorts, Reels, TikTok and cinematic widescreen.
Native Audio Built In
Sound is generated together with the picture and switched on by default. Describe footsteps, rain, music or spoken lines in your prompt and Flash produces them in sync, saving a separate sound-design pass for most social and ad content.
References and Video Editing
Guide a generation with reference images, video clips and audio, or start from a single first frame. Flash also supports video edit: change an existing clip with a prompt while keeping its subject, composition and motion.
Why Creators Choose Seedance 2.5 Flash
Flash does not replace the flagship. It changes how you work: explore cheaply and quickly, then spend premium renders only where they matter.
Seedance 2.5 Flash Features
Everything you can do with Seedance 2.5 Flash in the SeeVid video generator.
Text-to-Video
Describe the subject, action, camera move, look and sound, and receive a clip of up to 30 seconds with audio.
Image-to-Video
Animate a product photo, character or storyboard frame, keeping the original composition as the starting point.
Reference-to-Video
Combine reference images, videos and audio to keep characters, style and motion consistent across shots.
Video Edit
Rewrite an existing clip from a text prompt while preserving its subject, composition and movement.
Flexible Duration
Choose any whole-second length from 4 to 30 seconds, from quick hooks to full one-take scenes.
480p and 720p Output
Draft at 480p to save credits, or render at 720p for clean social and web delivery.
Six Aspect Ratios
16:9, 9:16, 1:1, 4:3, 3:4 and 21:9 for text and reference workflows, plus automatic sizing for image-to-video.
Audio On by Default
Dialogue, effects and ambience are generated with the picture. Switch audio off when you only need silent footage.
One Workspace
Run Flash next to Seedance 2.5, Seedance 2.0 and other models with shared credits and task history.
Seedance 2.5 Flash FAQ
Answers to common questions about Seedance 2.5 Flash, its limits and how it fits with Seedance 2.5.
Create with Seedance 2.5 Flash on SeeVid
Turn text, images and references into 30-second clips with sound in less time. Start with Seedance 2.5 Flash, then move to Seedance 2.5 when a shot needs a premium finish.