The solver takes the LLB graph and executes it. Each vertex in the DAG is content-addressed, so if you’ve already built a particular step with the same inputs, BuildKit skips it entirely. This is why BuildKit is fast: it doesn’t just cache layers linearly like the old Docker builder. It caches at the operation level across the entire graph, and it can execute independent branches in parallel.
与传统模型单一的“文本到视频”路径不同，Seedance 2.0能同时理解并融合文字、图片、视频、音频四种模态的输入。这意味着，你可以用文字描述故事，用图片定义角色和风格，用视频指定运镜，用音频驱动节奏和口型。
。Line官方版本下载对此有专业解读
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