arXiv paper proposes learning tokenization end-to-end via reinforcement learning
A new arXiv preprint argues that tokenization remains a fixed, hand-designed compression step in large language model pipelines even as other components become trainable end-to-end. The authors report that reinforcement learning can be used to learn tokenization jointly with the model, with earlier work showing promise at scale. The paper appears as a cross-listed replacement submission in cs.AI and cs.LG.