Soku AISeedance 2.5 — Native 30-Second AI Video
ByteDance's latest video model generates a single continuous 30-second shot with up to 50 multimodal references, 4K output, element-level editing, and native audio. Generate it in Soku AI and turn it into ad creatives.
AI Video Generation
Seedance 2.5 Studio
Model
Seedance 2.5
ByteDance · native audio · multimodal references · cinematic output
Video Prompt
Multimodal inputs — text, image, video, and audio references
Reference Inputs
Optional — reference them in your prompt as @Image1, @Video1, @Audio1.
Duration
Resolution
1080p / 4K unlock when Seedance 2.5 goes live.
Aspect Ratio
Audio
Generation usually takes 2–3 minutes.
Cinematic Landscape
A lone figure on an endless salt flat at dusk — text-to-video with natural depth and atmosphere
Atmospheric Night
A warmly lit cabin in a snowy pine forest — falling snow, ambient glow, native audio
Culinary ASMR
Close-up of sushi rolled by gloved hands — tactile detail with synchronized sound
Made with Seedance
Cinematic landscapes, product commercials, ASMR close-ups, action scenes — all generated from text, images, and references with native audio. Seedance 2.5 renders these at up to 4K in a single 30-second shot. Hover any clip to play; tap the speaker to hear the audio.
Cinematic Landscape
A lone figure on an endless salt flat at dusk — natural depth, haze, and reflection.
Editorial Portrait
A suited figure on a concrete staircase — moody architectural light, smooth dolly.
Surreal Underwater
An octopus guarding a soccer ball on the seabed — fluid motion and stable physics.
Atmospheric Night
A warmly lit cabin in a snowy pine forest — falling snow with native ambient audio.
Culinary ASMR
Sushi rolled by gloved hands in close-up — tactile detail with synchronized sound.
Aerial Scenery
Hot-air balloons drifting over misty rolling hills at dawn — sweeping camera move.
Product Commercial
An animated character interacting with a beverage — ad-style scene with synced audio.
Action Cinematic
A wuxia martial-arts confrontation in the rain — dynamic motion and sound design.
Beauty & Lifestyle
First-person ASMR close-ups with a healing ambiance — soft light, tactile sounds.
Seedance 2.5 at a Glance
Seedance 2.5 is ByteDance's next step for cinematic AI video. It keeps the multimodal engine that made Seedance 2.0 so flexible — the @-reference workflow, native audio co-generation, multi-shot storytelling — and pushes the ceiling on the two things that matter most for real production: length and control. One prompt now yields a single continuous 30-second shot, you can feed in up to 50 references at once, and you can re-draw one element of a frame without touching the rest.
Specs reflect ByteDance's Seedance 2.5 release.
What's New in Seedance 2.5
The 2.5 generation is about length and control — the two things that decide whether an AI clip is a demo or a deliverable.
Native 30-Second Single Shot
One prompt produces a single continuous 30-second take — no stitching, no drift. That is roughly 2× the length of most rivals and long enough for a full ad or explainer in one generation.
Up to 50 Multimodal References
Feed in up to 50 images, clips, and audio files in one generation — far above Seedance 2.0's 9 + 3 + 3 — so a whole brand kit, product set, and style board can inform a single shot.
Element-Level Editing
Change one thing — a character's clothing, a prop, the background, even the subject — while the rest of the scene stays pixel-consistent. Iterate on a winning shot instead of regenerating from scratch.
3D Blockout + Style Reference
Feed in a rough 3D blockout — basic shapes that lock space, composition, and motion — plus a style reference, and Seedance 2.5 renders it into a detailed, stable video with the camera path you intended.
Up to 4K with Native Audio
720p, 1080p, and 4K from one model — quick drafts and finish-grade masters alike — with synchronized sound effects, ambient audio, and dialogue generated jointly with the video.
Sharper Prompts, Near Real-Time
Roughly 20% better prompt adherence than Seedance 2.0 and generation speed improved toward near real-time — so the model does more of what you asked, faster.
Full Multimodal Control — Now at 30 Seconds
Seedance 2.5 inherits everything that made Seedance 2.0 the most flexible multimodal video model, and extends it to native long-form and element-level editing.
Multimodal Input (×50)
Reference up to 50 images, clips, and audio files in natural language — "take @Image1 as the first frame, adopt camera movement from @Video1" — for tight brand and character consistency.
Native Audio Co-Generation
A dedicated audio branch generates synchronized sound effects, ambient sound, and dialogue alongside the video — not stitched on after. Toggle it off when you plan to dub in post.
Phoneme-Level Lip Sync
Lip articulation driven by phoneme embeddings across multiple languages, with prosody shaping facial movement — natural multilingual dubbing for global campaigns.
Multi-Shot Storytelling
Write [Shot 1] … [Shot 2] … and the model plans cuts and camera work natively, holding characters, clothing, and spatial logic consistent across shots.
Motion & Camera Replication
Upload a reference video and the model adopts its camera work, movement, and effects — then swap characters, extend the clip, or drop in your own product.
Director-Level Controls
Specify professional cinematography: dolly-ins, lateral pans, follow shots, circular tracking. Control lighting, shadows, shot size, and angle while keeping framing consistent.
Physics & Motion
Realistic collisions, fabric dynamics, and fluid motion in action sequences, with stronger motion coherence across the longer 30-second window.
Element-Level Editing
Reference-based editing that re-draws part of a frame — clothing, prop, background, subject — without touching the rest, so you refine a winner instead of rerolling it.
Seedance 2.5 vs Seedance 2.0
Both share the multimodal engine and native audio. Seedance 2.5 raises the ceiling on clip length, reference count, resolution, and editing precision.
| Dimension | Seedance 2.5 | Seedance 2.0 |
|---|---|---|
| Max Single Shot | 30s native | 4–15s |
| Max Resolution | Up to 4K | 1080p · up to 2K |
| Reference Inputs | Up to 50 multimodal | 9 img + 3 vid + 3 audio |
| Editing | Element-level re-draw | Reference-based restyle |
| Extra Inputs | 3D blockout + style ref | — |
| Native Audio | Yes (synchronized) | Yes (synchronized) |
| Prompt Adherence | ~+20% vs 2.0 | Baseline |
| Speed | Near real-time | Standard |
Based on ByteDance's Seedance 2.5 release.
Built for High-Volume Ad Creative
Full-Length Ad in One Take
A single continuous 30-second shot is long enough for a complete ad or explainer — no cut-stitching, no continuity drift between segments.
Brand-Consistent Campaigns
Feed up to 50 references — product shots, style frames, brand clips — so every generation stays on-brand across a whole campaign.
Edit a Winner, Don't Reroll
Found a hero shot? Swap the outfit, the product, or the background with element-level editing while keeping everything else identical.
E-Commerce Cutdowns
Turn product shots into scroll-stopping motion clips per SKU, generated in bulk, ready for feeds and product pages.
Multi-Market Localization
One concept localized across languages with native phoneme-level lip sync — ship every market from a single brief.
Previz to Final
Feed a rough 3D blockout plus a style reference and render a stable, detailed video with the camera path you intended.
How Soku AI Helps
Soku AI turns Seedance into an end-to-end creative testing pipeline — from batch video generation to cross-channel performance measurement.
Batch video generation
Generate video ad variants across aspect ratios, hooks, and visual styles in minutes, all tied to your brand guidelines so every variant stays on-brand.
Soku AI builds reusable creative briefs, so you test angles, CTAs, and formats without rewriting a prompt each time.
Multi-platform adaptation
Produce assets for every placement — 9:16 for Reels/Stories, 1:1 for feeds, 16:9 for YouTube — from a single creative brief.
Multi-shot consistency means your product looks identical across every format.
Performance learning loop
Connect video output to real ad performance. Learn which styles, camera moves, and hooks drive conversions — then double down on winners.
Soku AI tracks CTR, CPA, and ROAS by creative variant, feeding insights into the next generation round.
Generate Seedance 2.5 in Soku AI
Skip the raw API. In Soku AI, Seedance 2.5 is part of a full ad creative workflow — generate on-brand video, deploy it as ads across Meta, Google, and TikTok, and learn what drives ROAS.
How it works
Sign in, describe your shot (add images, clips, or audio as references), and generate. Generation is credit-based, with a starter grant to try it — then upgrade for production volume. Every clip is ready to turn into on-brand ad variants inside Soku AI.
Frequently Asked Questions
Make Video Ads with Seedance 2.5
Generate Seedance 2.5 video in Soku AI, deploy your clips as ads across Meta, Google, and TikTok, and learn what drives ROAS.