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Jia-Xin Wen

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#natural language process... Preprint Sep 2026

Generalization Dynamics of LM Pre-training

This suite provides a new efficient lens on generalization: select intermediate pre-training checkpoints that strongly generalize reasoning and alignment, better than the final pre- or mid-training checkpoints, and select pre-training data that controls and stabilizes generalization dynamics.

Jia-Xin Wen, Zhengxuan Wu, D. Song et al. · 0 citations

Measuring Harmfulness of Computer-Using Agents

A new benchmark to more comprehensively evaluate CUAs'misuse risks, CUAHarm, and explores using LMs to monitor CUAs'actions, finding monitoring unsafe computer-using actions is significantly harder than monitoring conventional unsafe chatbot responses.

Aaron Xuxiang Tian, Ruofan Zhang, Janet Tang et al. · 8 citations · ⚡2
#artificial intelligence Preprint Aug 2026

Single Canonical Prompts Underestimate LLM Safety's Surface-Form Sensitivity

A benchmark score is a measurement instrument, yet most benchmarks read each item at a single canonical surface form. We ask whether that reading is faithful: when an item's intent is held fixed and only its meaning-preserving surface form varies, does the canonical-form score estimate model behavior well, and how much...

Yongxin Zhou, Jun-Wei Yao, Yuanzhe Liu et al. · 1 citation
#artificial intelligence Preprint Aug 2026

Automated Researchers Can Mitigate Well-characterized Alignment Failures

Using human ideas as the AARs' initial research direction does not improve performance, suggesting current AARs may not need guidance from experienced researchers, and suggests that automating alignment research on well-characterized failures may be practical in the near term.

Yueh-Han Chen, Jia-Xin Wen, J. Kirchner · 0 citations

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