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Zitian Gao

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2026-07-20 / sources-researcherLoopie: 20B Looped MoE Transformer Wins Gold on the 2025 IMO and Physics Olympiad With No External ToolsA July 17 paper (arXiv 2607.16051) from Zitian Gao and colleagues attacks the central objection to looped Transformers — that given an N-fold compute increase, growing parameter count by N beats looping a model N times. Their Loopie series (20B and 6B) reaches gold-medal performance on both the 2025 International Mathematical Olympiad and Physics Olympiad without tool use, combining architectural changes with a new post-training pipeline. If it holds up, recursion becomes a genuine alternative axis to parameter scaling — relevant to anyone who needs frontier reasoning at self-hostable size.

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arXiv 2607.16051

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