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I don't understand why he's citing a NeurIPS 2025 paper when cross-layer parameter sharing was introduced in ALBERT already in 2019.
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if only tweeting is as rigorous as academic literature reviews
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Sounds this like this will be a huge win for local models, since generally they're ram limited but have compute to spare
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Only if you double layers by layers instead of the whole stack (which IIRC is what nanbeige is doing).

To put it simply, if you have 3 layers A-B-C then A-A-B-B-C-C requires more compute but not more memory bandwidth, but A-B-C-A-B-C requires both twice the compute and twice the memory bandwidth for the same token generation speed.

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