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Zai-Xi Zhang

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#artificial intelligence Preprint Sep 2026

Who Teaches Which Token? Verifier-Gated Multi-Expert On-Policy Distillation for Scientific Reasoning

Verifier-Gated Multi-Expert On-Policy Distillation (VG-OPD) attains the best overall performance on seven benchmarks for 4B and 8B students, ranking first on five at both scales, with the largest gains on knowledge-intensive scientific reasoning tasks.

Xun Xu, Zai-Xi Zhang · 3 citations · ⚡1

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