Seedance 2.0 vs Veo 3
Direct answer: Seedance 2.0 (ByteDance) generates clips up to 15s. Veo 3 (Google) generates clips up to 8s. We have measured prompt data for Seedance 2.0 only (5,926 prompts), so this page separates verified specs from measured practice.
Specification comparison
| Dimension | Seedance 2.0 | Veo 3 |
|---|---|---|
| Max clip length | 15s | 8s |
| Duration options | 5s default; up to 15s; -1 lets the model choose | fixed set: 4, 6 or 8 seconds |
| Reference inputs | up to 9 images, 3 videos (15s each), 3 audio files | image-to-video with one input image (max 20 MB); multi-reference not documented |
| Default duration | 5s | |
| Auto duration | yes | |
| Resolutions | 480p, 720p, 1080p, 4k | 720p, 1080p |
| Aspect ratios | 16:9, 4:3, 1:1, 3:4, 9:16, 21:9, 9:21, adaptive | 9:16, 16:9 |
| Max prompt length | 4000 chars | |
| Prompt languages | documented for English; multilingual input reported | English only (per Vertex AI docs) |
| Native audio | yes | yes |
Verified figures checked 2026-09-11. Source: Seedance 2.0 model card. Source: Veo 3 docs.
What our prompt corpus shows
Across 5,926 analysed Seedance 2.0 prompts from 1,196 authors, creators state camera language in 89.5% of prompts and lighting in 83%. Only 27.2% state an aspect ratio, even though it changes the entire shot design.
The clearest pattern is duration. The two models have different ceilings — 15s for Seedance 2.0 versus 8s for Veo 3 — and in our Seedance 2.0 corpus 71% of prompts that state a duration ask for exactly 15 seconds. If a prompt written for a 15s ceiling is reused on a 8-second model, it needs rewriting, not just retargeting.
| Model | Max clip length | Duration options |
|---|---|---|
| Seedance 2.0 | 15s | 5s default; up to 15s; -1 lets the model choose |
| Kling v2.5 | 15s | 3-15s range |
| Veo 3 | 8s | fixed set: 4, 6 or 8 seconds |
Ceilings verified 2026-09-11 from vendor sources. Corpus figures computed 2026-09-11 from our own structured data — see the statistics page.
How to choose between Seedance 2.0 and Veo 3
Match the model to the constraint that binds your project first. If you need native synchronised audio and long reference chains, Seedance 2.0documents audio generation with up to 9 reference images. If your project needs clips longer than 15 seconds, neither a 15s ceiling nor an unverified one is a safe assumption — verify before committing to a shot plan.
For prompt structure itself, the transferable part is the shot description: subject, action, camera movement, lighting and duration. That framing works across text-to-video models, which is why the 5,926 structured cases here remain useful even when a project moves to a different model.
Frequently asked
Is Seedance 2.0 better than Veo 3?
Neither is universally better. They differ in maximum clip length, native audio, reference limits and resolution support — the right choice depends on which of those constrains your project. We publish only verified specifications and mark anything we have not confirmed.
Can I reuse a Seedance 2.0 prompt with Veo 3?
The shot structure transfers; the parameters may not. Re-check duration against the target model's ceiling, confirm the aspect ratio is supported, and drop reference syntax the target does not understand.