Comparison最終更新：2026-07-29
Sora 2 vs Seedance 2
Compare OpenAI Sora 2 and Seedance 2 on duration, resolution, audio, and social vs narrative use cases.
Sora 2 — 最適な用途：
- +OpenAI ecosystem users
- +Anime and stylized video generation
- +Multi-clip consistency-critical projects
- +Variable-duration creative content
- +Scene-to-scene consistency
Seedance 2 — 最適な用途：
- +Social media content calendars
- +Ultrawide / cinematic social formats
- +Multi-reference short videos
- +Teams needing audio + flexible length
| Feature | HotSora 2 OpenAI | NewSeedance 2 ByteDance |
|---|---|---|
| Provider | OpenAI | ByteDance |
| Price | 5 credits/video | 4 credits/video |
| Duration | 4–20s variable | 4–15s variable |
| Resolution | 720p | 480p–1080p |
| Aspect Ratios | 16:9, 9:16, 1:1 | 16:9, 9:16, 1:1, 4:3, 21:9, adaptive |
| Native Audio | No | Yes |
| 先頭フレーム参照 | Yes | Yes |
| 最終フレーム参照 | No | Yes |
| Base64 Support | No | Yes |
| Negative Prompt | No | No |
| Prompt Enhancement | No | No |
| Camera Control | No | No |
Sora 2の弱点
- -Max 720p resolution only
- -No native audio
- -No negative prompt or camera control
- -Highest cost tier among comparables
- -Portrait/landscape orientation control less fine-tuned
Seedance 2の弱点
- -No 4K output
- -Less proven for text-in-video than Veo
- -Portrait-first workflows may prefer Kling
- -Newer model with fewer third-party writeups
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