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cs.CL2026
What Is a Repeated Token Worth? The Scaling Geometry of Multi-Epoch Pretraining
Yekun Chai, Haoyi Xiong
As pretraining increasingly repeats data, every run faces three questions: how many epochs to take, how that number should change with model size, and whether anything besides the…
cs.CL2026
Finding the Move Is Not Winning the Game: XiangqiBench for Closed-Loop Evaluation of LLM Agents
Yekun Chai, Qiwei Peng, Haoyi Xiong
Static evaluations credit a language model for naming the right move, but an agent must carry a plan through to a verified outcome while an opponent responds. We introduce XiangqiB…