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README.md

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+---
+license: mit
+---
+
+<h1 align="center">
+On the Interplay of Pre-Training, Mid-Training, and RL on Reasoning Language Models
+</h1>
+
+<div align="center">
+
+<a href="https://chenlong-clock.github.io">Charlie Zhang</a>, <a href="https://www.phontron.com">Graham Neubig</a>, 
+<a href="https://xiangyue9607.github.io">Xiang Yue</a>
+
+Carnegie Mellon University, Language Technologies Institute
+
+</div>
+
+<div align="center">
+
+[![arXiv](https://img.shields.io/badge/arXiv-2512.07783-b31b1b.svg?logo=arxiv&logoColor=white)](https://arxiv.org/abs/2512.07783)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
+![Python](https://img.shields.io/badge/python-3.9%2B-blue)
+
+</div>
+
+
+This repository contains post-trained checkpoints in extrapolation tasks.
+
+## 📚 Citation
+
+If you find this work or code useful, please consider citing:
+
+```bibtex
+@misc{zhang2025interplaypretrainingmidtrainingrl,
+      title={On the Interplay of Pre-Training, Mid-Training, and RL on Reasoning Language Models}, 
+      author={Charlie Zhang and Graham Neubig and Xiang Yue},
+      year={2025},
+      eprint={2512.07783},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL},
+      url={https://arxiv.org/abs/2512.07783}, 
+}
+```