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AF-Muon: An AdamW-Free Muon Optimizer for Tied-Embedding Models

Lagzian, Arash et al.
arXiv (All) · Papers
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Muon improves large-scale training by applying a spectral-norm steepest-descent update to matrix parameters, but practical models also contain parameter blocks that do not fit dense-matrix geometry. One important case is the tied vocabulary table, which appears in language models and other token gen
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