Video engine
Seedance 2.5 — the flagship
Seedance 2.5 is the engine the long-clip plans were built around: 1080p, clips from 4 to 30 seconds on a one-second grid, coherent physics, native aspect control, image-to-video with first-and-last-frame interpolation and a reproducibility seed. It is ByteDance's newest flagship, served on eroq with the studio's casting, director's rack and storyboard on top.
50 free credits · no card · adults only, by policy
- Price
- 180 credits / 5 s · 340 credits / 10 s · per-second beyond
- Length
- 4 to 30 seconds (plan-capped: 20 s on Creator, 30 s on Studio+)
- Resolution
- 480p · 720p · 1080p
- Formats
- 16:9 · 9:16 · 1:1 native
- Inputs
- Text, start frame, start + end frame, Characters, seed
- Access
- Creator plan and up ($49/month)
- Content
- SFW only — moderated upstream
Why creators pick Seedance 2.5
- →Length: it is the only engine on the roster that goes past 12 seconds — up to 30 on the Studio, Team and Agency plans.
- →Physics and continuity: cloth, hair, water and crowds hold together across the whole clip.
- →First/last-frame: give it a start image and an end image and it interpolates the motion between — the cleanest way to hit a precise final frame.
- →Seed: the same prompt with the same seed re-renders the same take, so a good composition can be revised instead of gambled.
How to prompt it
Seedance rewards specific, literal prompts: name the subject, one or two actions in order, the camera move, the light. It follows the director's rack (film type, era, tempo, lens, aperture) closely, which makes it the best engine for a consistent multi-scene film. Use the Enhance button on a rough draft and read what it changes — it writes in the register this engine likes.
What it costs at every length
Pricing is anchored at 180 credits for 5 seconds and 340 for 10; every second past five is billed at the marginal rate between those anchors, and the studio shows the exact total on the Generate button before you commit. A 30-second clip on the Studio plan lands well under a dollar per second at the plan rate.
Starting points
Every tile opens the studio with the prompt already written.
Frequently asked questions
How long can a Seedance 2.5 clip be?
From 4 to 30 seconds on a one-second grid. Your plan caps the maximum: 20 seconds on Creator, 30 seconds on Studio, Team and Agency.
Which plan do I need for Seedance 2.5?
Creator ($49/month) or any plan above it. Hobby unlocks Seedance Lite and Hailuo; the free tier renders on Motion One.
Does Seedance 2.5 support image-to-video?
Yes — a start frame, or a start and an end frame with interpolation between them. Saved Characters work as the start frame too.
Can Seedance 2.5 render mature content?
No. Seedance is moderated by its provider and serves SFW work only. Mature scenes render on Motion One, the uncensored engine.
Is the output reproducible?
Yes: Seedance engines honor a seed. Same prompt, same settings, same seed — the same clip.
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