Mixture of Depths

Mixture-of-Depths: Mathematical Foundations, Dynamic Compute Routing, Capacity-Constrained Tensors, and IsoFLOP Scaling

Mixture-of-Depths (MoD): Mathematical Foundations, Dynamic Compute Routing, Capacity-Constrained Tensors, and IsoFLOP Scaling In standard autoregressive Transformer architectures, computational effort is distributed uniformly across all tokens in a sequence. Every token position $i \in \{1, \dots, S\}$ passes through every layer $l \in \{1, \dots, L\}$, executing identical matrix multiplications across multi-head self-attention and feed-forward networks (FFN). This architectural constraint igno