Seedance 2.0 预览：2026年最佳视频模型，超越 Sora 2
字节跳动悄然推出了Seedance 2.0。值得关注的并不是常规的文本转视频升级，而是其参考/条件系统。
与典型的文本转视频（T2V）模型不同之处在于：
- 同时接受四种输入方式：文本、图像（最多9张）、视频片段（最多3个，总时长≤15秒）和音频（最多3个，总时长≤15秒）。混合输入的上限为12个文件。
- 基于参考的生成：可以使用图像锁定构图/角色外观，使用视频片段指定摄像机运动和动态，使用音轨驱动节奏和速度。输出包括生成的音效/背景音乐。
- 关键声明是“音频驱动的视频”，而不是“附带音频的视频”——这意味着运动实际上是与音频输入的节拍结构同步的，而不仅仅是叠加在一起。
- 支持视频的延续/扩展，具有镜头间的一致性，并可以对现有片段进行编辑操作（角色替换、片段插入/删除）。
- 输出时长：4–15秒，可选择。内置音效。
技术上这为何重要：
目前大多数视频模型将音频视为后处理步骤。而Seedance 2.0似乎直接将扩散过程与音频特征相结合，这也解释了其节拍同步的行为。多参考@标记系统（@image1用于构图，@video1用于运动，@audio1用于节奏）表明其架构是混合条件的，而非简单的连接。
目前尚未看到官方公告。相关文档已在Dreamina（字节跳动的创意平台）上发布。想知道是否有人对其架构有更多细节。
如果您希望在发布后进行测试，以下是一些适合您使用场景的平台：
- 对于开发者（API）：https://www.atlascloud.ai/
- 对于创作者：Higgsfield, ImagenArt
有关Seedance 2.0的更多信息：https://www.reddit.com/r/SoraAi/comments/1qxdv5u/seedance_20_teaser_better_than_sora_2_true/
Seedance 2.0讨论的子版块：https://www.reddit.com/r/Seedance_AI
查看原文
ByteDance quietly shipped Seedance 2.0. The interesting part isn't the usual text-to-video upgrade — it's the reference/conditioning system.<p>What's different from the typical T2V model:<p>Accepts 4 input modalities simultaneously: text, images (up to 9), video clips (up to 3, ≤15s total), and audio (up to 3, ≤15s total). Mixed input cap is 12 files.
Reference-driven generation: you can use an image to lock composition/character appearance, a video clip to specify camera movement and motion dynamics, and an audio track to drive rhythm and tempo. Outputs include generated SFX/BGM.
The key claim is "audio-driven video" rather than "video with audio attached" — meaning motion is actually synced to the audio input's beat structure, not just overlaid.
Supports video continuation/extension with shot-to-shot coherence, and editing operations (character swap, segment insertion/removal) on existing clips.
Output: 4–15s, selectable. Comes with built-in sound.
Why this matters technically:<p>Most current video models treat audio as a post-processing step. Seedance 2.0 appears to condition the diffusion process on audio features directly, which would explain the beat-sync behavior. The multi-reference @ tagging system (@image1 for composition, @video1 for motion, @audio1 for rhythm) suggests a mixture-of-conditions architecture rather than simple concatenation.<p>Haven't seen an official announcement yet. Docs are up on Dreamina (ByteDance's creative platform). Curious if anyone has more details on the architecture.<p>If you want to test them after launch, here are a few good platforms depending on your use case:
- For developers (API): https://www.atlascloud.ai/
- For creators: Higgsfield, ImagenArt<p>More info of the Seedance 2.0: https://www.reddit.com/r/SoraAi/comments/1qxdv5u/seedance_20_teaser_better_than_sora_2_true/
Subreddit of Seedance 2.0 for discussion: https://www.reddit.com/r/Seedance_AI