Author

Cong Wu

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Preprint Aug 2026

MoE Proxy Models for Low-Cost Failure Reproduction and Diagnosis in LLM RL Post-Training

This paper systematically analyzes failures encountered during large-scale RL training on the Huawei Ascend platform, summarizes representative failure types, and identifies three model-side factors relevant to fault reproduction.

Yikai Wang, Chuansai Zhou, Yuhang Zhou et al. · 0 citations