Author

Ying-Han Cui

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#small language model Preprint Sep 2026

Beyond Shadow Weights: Quantization-Aware Training as Quantized-Endpoint Descent

An idealized model for the residual phase is proposed, which records where each shadow weight sits inside its quantization cell as a fraction of the cell width as a fraction of the cell width, which leads to a crossing law that determines which coordinates cross quantization boundaries after a shadow update.

Sheng-An Xu, Hanyang Li, Jian-Hao Ma et al. · 1 citation

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