Unverified50% confidenceSolutionExact time
延迟解耦(Delayed Untying)的核心思想是：训练前2/3阶段将embed与lm_head绑定共享，到达某个节点后复制权重和优化器状态，然后让二者作为独立参数分别训练
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8/24/2026
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