ByteDance Seedance 2 · near-final clips with audio 
Seedance 2 Fast Near-final clips with always-on audio
More polish than Mini drafts, under full-tier spend — 480p–720p, 4–15s, text, frames, or refs.
Run Seedance 2 Fast when the idea is locked and Mini drafts no longer look finished enough. You keep multimodal inputs and always-on audio, stay on 480p or 720p, and spend mid-tier rates instead of full 1080p/4K pricing.
- Always-on native synced audio
- Text, frames, or multimodal refs (≤9 / 3 / 3)
- More polish than Mini drafts
- Under full-tier spend at mid Seedance rates
- 480p or 720p · 4–15s · per-second credits
Seedance 2 Fast: polished 4–15s clips without full-tier cost
Mid Seedance quality with the same input set as Mini — not a faster clock than Mini.
Catalog speed matches Mini (grade 4). Choose Fast for a visible quality step and mid per-second rates: about 20 credits/s at 480p and 40 at 720p on text/image paths. Audio is always on. There is no 1080p or 4K on Fast — step to full Seedance 2 for those.
| Seedance 2 Fast | seedance 2 fast | Seedance 2 Fast text to video | Seedance 2 Fast image to video | Seedance 2 Fast vs Mini | seedance-2-fast |
Four reasons to stay on Fast
Why Fast: more polish than Mini, less spend than full Seedance
Use Fast when the brief needs Mini-plus polish without paying full Seedance 2 for every take.
A visible quality step above Mini drafts
Fast sits at quality grade 4 while Mini sits at 3 — same 480p/720p ceiling, more polish in the frame. Reach for Fast once a storyboard cut must read as near-final for social, demo, or client review without jumping to full-tier rates.
Picture and always-on synced sound together
Every Fast clip renders with native synced audio forced on — ambience and motion arrive together. There is no audio on/off control for Seedance on SupaImagine; plan the brief knowing sound is part of the deliverable, not a later scoring pass.
Directed motion from prompt, frames, or refs
Write camera and light into the prompt, lock a start still (and optional end still), or stack multimodal references so look and performance hold. Fast carries Seedance motion control at mid-tier rates — useful when you still iterate before a full-tier finish.
Pay only 480p or 720p at mid-tier rates
Resolution is a spend lever, not an upsell to 1080p. Text and frame paths bill about 20 credits/s at 480p and 40 at 720p; multimodal runs with a video reference can land lower. Compare Mini’s lower rates and full Seedance 2’s higher rates plus 1080p/4K only when the take earns it.
Balanced-tier path
Queue a balanced Seedance take in four steps
Choose input path, length, and 480p or 720p — then render with always-on audio.
1
Choose how the shot enters
Write a single continuous beat for text-to-video, drop a required start frame (optional end frame) for image-to-video, or attach multimodal refs — up to nine images, three videos, and three audio files.
2
Set length and resolution on Fast
Pick four to fifteen seconds and 480p or 720p only. The generator shows exact per-second credit cost before you queue; 1080p/4K are not on this tier.
3
Run with always-on synced audio
Generate on Seedance 2 Fast. Audio is always included — no toggle. Failed runs refund credits; successful clips land in your library for review.
4
Keep, re-prompt, or step up
Iterate on Fast while the brief still moves. When an approved take needs 1080p, 4K, or the top fidelity grade, switch the same idea to full Seedance 2 in the picker.
Pick by job, not by brand noise
Mini, Fast, or full — which Seedance tier fits
Verified differences on SupaImagine: quality grade, resolution ceiling, rate posture, and speed tier.
| Seedance 2 Top fidelity · 1080p & 4K | Veo 3.1 Fast ~8s · image refs · different family | |||
|---|---|---|---|---|
| Best when you need | Cheap high-volume drafts | Near-final polish under full-tier spend | Hero delivery / native 1080p–4K | Fixed ~8s Google Veo + 1–3 still refs |
| Quality / speed grades | Quality 3 · speed 4 | Quality 4 · speed 4 (not faster than Mini) | Quality 5 · speed 2 (premium pass) | Quality 4 · speed 4 (Veo Fast rates) |
| Resolution here | 480p · 720p | 480p · 720p | 480p · 720p · 1080p · 4K | 720p · 1080p · 4K |
| Length | 4–15 seconds | 4–15 seconds | 4–15 seconds | ~8 seconds fixed |
| Credit posture (indicative) | Lowest Seedance per-second rates | t2v/i2v ~20/s @480p · ~40/s @720p | Higher Seedance rates + 1080p/4K | Per-clip Veo Fast rates |
| Audio | Always-on native synced | Always-on native synced | Always-on native synced | Default on (not hard guarantee) |
Where the middle tier wins
Production-ready briefs that stop short of full tier
Jobs that need Mini-plus finish without paying full Seedance 2 on every attempt.
Paid social near-finals
Ship short promo and ad takes that must look finished in feed, while you still re-prompt several variants at mid Seedance rates.
Product demo motion
Animate a product still with a start frame (and optional end frame) into a 4–15s demo clip with always-on sound for listings and landing pages.
Client review before hero spend
Send clients a polished Fast take for direction notes, then step up only the approved beat to full Seedance 2 when 1080p or 4K is required.
Multimodal continuity checks
Stack reference images, short clips, and audio to hold character, look, or sound across shots without jumping straight to top Seedance rates.
Flexible-length inserts
Need longer or shorter than a fixed ~8s family clip? Stay on Seedance Fast for directed inserts between four and fifteen seconds at 480p or 720p.
Explainer and UGC-style beats
Talking-point and how-to motion where always-on audio helps the cut feel complete, without full-tier resolution or rates.
Explore other video models
One plan, every video model — pick a better fit for motion, length, or style.
Veo 3.1
Text or first/last frames — not reference stacks, not flexible duration. Sound rides with the picture by default; lock 720p, 1080p, or 4K before credits move.
Gemini Omni Flash
Text, a still, or a source video — 3–10 seconds, 16:9 or 9:16, 30 credits per second.
Seedance 2
The only Seedance tier with 1080p and 4K — always-on synced audio, 4–15s from text, frames, or refs.
HappyHorse 1.1
Joint audio and mouth motion in 7 languages — text, a first frame, or up to 9 reference images.
Seedance 2 Fast questions before you generate
Does Seedance 2 Fast go to 1080p or 4K?
No. Fast tops out at 480p and 720p. When the delivery needs 1080p or native 4K, promote the winner to full Seedance 2.
Is audio optional on Fast?
No. Seedance 2 Fast renders always-on synced audio. There is no mute toggle for a silent-only path on this tier.
How do Fast credits work per second?
Text-to-video and image-to-video are about 20 credits per second at 480p and 40 at 720p. Reference-to-video with a video reference can bill lower. Check the on-page estimate before you run.
Mini or Fast when both cap at 720p?
Pick Mini for the lowest Seedance rates while you still need volume of trials. Move to Fast when draft polish is not enough but full-tier 1080p/4K spend is not required yet.
Is Fast quicker than Mini?
No. Both list the same speed grade. Fast is the mid-quality, mid-price rung — not a speed SKU over Mini.
What inputs does Fast accept?
The same multimodal set as the family: text, frames, and references within the limits shown in the generator (including multi-ref caps). Nothing is stripped just because you are not on full tier.
How long is a Fast take?
Four to fifteen seconds. Set duration with the story before you spend so mid-tier rates stay intentional.
Are paid-plan Fast clips cleared for commercial work?
Yes under a paid plan and the Terms, with the same third-party content rules as other Seedance tiers.
After a take lands
Finish or step up a Fast Seedance take
Stay in the workspace to board stills, switch models, or post-process motion.
Need Mini-plus polish without full-tier rates?
Open Seedance 2 Fast, set 480p or 720p, queue a 4–15s take with always-on audio, and step up only the winner.