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Transformers Learn Two Competing Sorting Algorithms, and Only One Length-Generalizes

arXiv:2610.26974v1 Announce Type: new Abstract: We show that two-layer transformers trained to near-zero loss on a sorting task converge to one of two mechanistically distinct solution classes depending on their initialization. One solution class consists of solutions that do not use the second att…

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  1. 2026-10-21 04:00 · arXiv cs.LG
    Transformers Learn Two Competing Sorting Algorithms, and Only One Length-Generalizes

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