ByteDance releases Seedance 2.5: 30-second video generation, multimodal references, and precise editing

字节发布 Seedance 2.5：单次生成 30 秒视频，支持多模态参考与精准编辑

ByteDance's Seed team launched Seedance 2.5, a video model that generates 30-second clips in one go and supports multi-round extension for coherent multi-minute videos. Three upgrades stand out: long-form narrative with smoother transitions and less 'plastic' look; multimodal referencing accepting up to 30 images, 10 videos, and 10 audio clips at once; and timestamp-based editing plus improved green-screen and camera-angle editing. The model is rolling out on Jimeng AI and Doubao Pro, with an API coming to Volcano Ark. The post shows use cases in education, industrial simulation, and autonomous driving but does not disclose pricing or latency.

Why it matters: ByteDance Seed team released Seedance 2.5, a video model with 30-second single generation, multi-round extension, and concrete multi-modal reference specs (30 images, 10 videos, 10 audio clips). White-box 3D layout control is a notable new mechanism. Scored as a domestic flags...