Squeezing More From Attention: A Smarter Way to Manage Model Memory
![Attention mechanisms are being refined to address the escalating costs of key-value (KV) caching-Multi-Head Attention’s independent projections ([latex]2LHd_h[/latex]) give way to compression in Multi-Latent Attention ([latex]Ld_c[/latex], where [latex]d_c \ll d[/latex]), then to shared projections in Multi-Query and Grouped-Query Attention, culminating in a novel Low-Rank KV approach that-by maintaining full-rank projections alongside low-rank residual updates ([latex]2L(d_h + Hr)[/latex])-achieves a balance between head diversity and caching efficiency comparable to Multi-Latent Attention.](https://arxiv.org/html/2601.11471v1/figures/LowRankKVCache.png)
A new attention mechanism dramatically reduces the memory footprint of large language models without sacrificing performance.
![Attention mechanisms are being refined to address the escalating costs of key-value (KV) caching-Multi-Head Attention’s independent projections ([latex]2LHd_h[/latex]) give way to compression in Multi-Latent Attention ([latex]Ld_c[/latex], where [latex]d_c \ll d[/latex]), then to shared projections in Multi-Query and Grouped-Query Attention, culminating in a novel Low-Rank KV approach that-by maintaining full-rank projections alongside low-rank residual updates ([latex]2L(d_h + Hr)[/latex])-achieves a balance between head diversity and caching efficiency comparable to Multi-Latent Attention.](https://arxiv.org/html/2601.11471v1/figures/LowRankKVCache.png)
A new attention mechanism dramatically reduces the memory footprint of large language models without sacrificing performance.
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