1
Pick a shot longer than 8 seconds
That is where the single-clip difference shows up most.
AI SeedanceModel comparison
Seedance 2.0 vs Veo 3.1
ByteDance vs Google DeepMind, on the specs
Seedance 2.0 and Veo 3.1 both generate video with native sound. Seedance 2.0 makes longer single clips (up to 15 s) and accepts video and audio references; Veo 3.1 makes 4–8 s clips but can extend a shot to over two minutes at 720p and lives inside Google’s Gemini, Flow, and Vertex AI.
- Longest single clip
- 15 s vs 8 s
- Reference images
- 9 vs 3
- Video / audio references
- Yes vs —
- Aspect ratios
- 6 vs 2
This page opens Seedance 2.0 so you can test the same prompt yourself. AI Seedance offers Seedance models only; Veo is listed for comparison.
Spec comparison
Seedance 2.0 vs Veo 3.1
| Attribute | Seedance 2.0 | Veo 3.1 |
|---|---|---|
| Developer · release | ByteDance · Feb 2026 | Google DeepMind · Oct 2025 |
| Clip length | 4–15 s | 4, 6 or 8 s |
| Max resolution | 4K | 4K (8 s clips only) |
| Aspect ratios | 21:9, 16:9, 4:3, 1:1, 3:4, 9:16 | 16:9, 9:16 |
| Image to video | First frame, first + last frame | First + last frame |
| Reference images | Up to 9 | Up to 3 |
| Reference video / audio | Up to 3 each | Not documented |
| Extension | Yes | 7 s per step, up to 148 s, 720p |
| Native audio | Voices, SFX, music | Always on: dialogue, SFX |
Specs checked against official documentation on 2026-10-09.
How it works
Seedance 2.0 vs Veo 3.1, step by step
2
Add your references
Try image, video, and audio references on Seedance 2.0 in the workspace above.
3
Compare usable output
Count how many generations it takes to get a clip you would publish.
Which to choose
Pick by the job, not the brand
Choose Seedance 2.0 for longer single clips
Up to 15 seconds in one generation versus 8 for Veo 3.1.
Choose Seedance 2.0 for video and audio references
Guide motion with a clip and timing with a track — not documented for Veo 3.1.
Choose Veo 3.1 for long continuations
Extend a shot 7 seconds at a time up to 148 seconds total, at 720p.
Choose Veo 3.1 inside Google’s stack
It is available in the Gemini API, Vertex AI, the Gemini app, and Flow.
Best uses
Where each model fits
10–15 s social spots
Seedance 2.0 — one generation, no stitching.
Motion matched to a reference clip
Seedance 2.0 — reference video input.
Very long single takes
Veo 3.1 — extensions up to 148 s at 720p.
Teams already on Vertex AI
Veo 3.1 — native to Google Cloud.
Keep exploring
More Seedance tools
FAQ
Questions about Seedance 2.0 vs Veo 3.1
Is Seedance 2.0 better than Veo 3.1?
They suit different jobs. Seedance 2.0 makes longer single clips and accepts more kinds of references; Veo 3.1 extends shots further and integrates with Google’s tools. Test your own prompt.
Can Veo 3.1 make 15-second videos?
Not in one generation: Veo 3.1 clips are 4, 6, or 8 seconds. Longer results come from extensions at 720p.
Which one supports 4K?
Both. Veo 3.1 requires 8-second clips for 4K; Seedance 2.0 offers 4K across its 4–15 s range.
Do both generate audio?
Yes. Veo 3.1 audio is always on; Seedance 2.0 audio can be switched on or off.
Can I use Veo 3.1 on AI Seedance?
No. AI Seedance runs ByteDance’s Seedance models; Veo is included only for comparison.