Author

Ming-Lei Zhang

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Jul 2026

Cross-Tokenizer On-Policy Distillation via Byte-Prefix Marginalization

Open-weight language models from different families exhibit complementary capabilities, motivating their consolidation into a compact student through on-policy distillation (OPD). However, full-vocabulary OPD typically assumes a shared tokenizer, while existing cross-tokenizer methods may discard teacher probability ma...

Hao Wang, Kun Yuan, Wenlin Zhong et al. · arXiv.org · 5 citations · ⚡1

Preprint Jul 2026

KAT-Coder-V2.5 Technical Report

We present KAT-Coder-V2.5, a coding-focused agentic model trained to act autonomously inside real, executable repositories rather than as a single-turn code generator. Its capability is bottlenecked less by model scale than by the scarcity of reproducible environments, verifiable rewards, and high-value trajectories, w...

Bofeng Huang, Fengxiang Li, Hao Xu et al. · 2 citations