# ByteDance Seedance 2.5 Officially Released: One-Shot Video Creation with Flexible References

- Category: Flash (快讯)
- Published: 2026-07-31T12:00:00.000Z
- Source date: 2026-07-31
- HTML: https://www.88z.ai/en/news/flash-20260731-e5e2f63cb2c12a4e
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ByteDance's Seed team launches Seedance 2.5, doubling single-generation duration to 30 seconds with extension support, while enhancing multimodal referencing and professional editing capabilities.

## At a glance

- Single-generation duration increased to 30 seconds with multi-round extension support
- Supports multi-image, video, and audio references along with professional editing features

## The update

ByteDance's Seed team has officially launched Seedance 2.5, a next-generation video creation model. The model increases single-generation duration from 15 to 30 seconds and supports multi-round extensions, enabling the production of coherent content lasting several minutes. Seedance 2.5 features comprehensively upgraded multimodal referencing capabilities, accepting up to 30 images, 10 video clips, and 10 audio tracks as reference materials in a single instance. Additionally, it introduces professional functions such as precise timestamp editing, green screen replacement, and perspective adjustment, designed to meet the specific needs of film production and advertising creation.

## Sources

- [字节跳动Seed](https://mp.weixin.qq.com/s/_LtI8-8PkyQckW9CPQVw5A) (2026-07-31)

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