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About this paper

Pengxiang Li, Dilxat Muhtar, Di He, Guinan Su, Lu Yin, Shiwei Liu

InfiLoop adds test-time depth to recursive Transformers by reusing a shared block while retaining a learned, decaying summary of earlier candidate states and weighting new ones by content. In Sudoku-Extreme, the 7M-parameter model reaches 90.9% exact accuracy at 1,872 executed layers, compared with FPRM's 90.1% at 3,744. These are layer-evaluation counts, not runtime measurements, and results cover symbolic tasks.

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