Zhen AI is a brand of Hangzhou Zhen AI Technology Co., Ltd. (杭州真AI科技有限公司), and the service is operated on its behalf by Eigenstate Research LLC (USA). In Japan, Terabox K.K. (Terabox株式会社) is our strategic partner, leading local launch and distribution. Hangzhou Zhen AI Technology has entered an exclusive partnership with ByteDance to bring the complete, unrestricted overseas edition of Seedance and other video-generation models to the Zhen AI gateway.
1080p & 4K resolution
Up to 30-second generations
Alibaba's Wan 3.0 Prime — 480p to 1080p, clips of 5 to 30 seconds, native audio, first/last-frame control — from the same metered credit, in the Video Studio or via POST /v1/videos.
| Seedance 2.0 | Seedance 2.5 | |
|---|---|---|
| Resolution | 1080p & 4K | 1080p & 4K |
| Max generation length | ~10 seconds | Up to 30 seconds |
| API availability | Full API | Full model + API |
| First market | Japan | Japan |
| Launch date | 2026-07-20 | 2026-07-25 |