Wen Sun

Assistant Professor, Cornell University

Joined

October 2017

Names

Wen Sun

Emails

****@cs.cmu.edu (Confirmed)

****@andrew.cmu.edu (Confirmed)

****@microsoft.com (Confirmed)

****@cornell.edu (Confirmed)

****@gmail.com (Confirmed)

Personal Links

Homepage

Google Scholar

Career & Education History

Assistant Professor

Cornell University (cornell.edu)

2020 – Present

Postdoc

Microsoft Research NYC (microsoft.com)

2019 – 2020

PhD student

Carnegie Mellon University (cmu.edu)

2014 – 2019

Advisors, Relations & Conflicts

No relations added

Expertise

Imitation Learning

Present

Reinforcement Learning

Present

Publications

KARL: Knowledge Agents via Reinforcement Learning
Jonathan Daniel Chang, Andrew Drozdov, Shubham Toshniwal, Owen Oertell, Alexander R Trott, Jacob Portes, Abhay Gupta, Pallavi Koppol, Ashutosh Baheti, Sean Kulinski, Ivan Zhou, Irene Dea, Krista Opsahl-Ong, Simon Favreau-Lessard, Sean Owen, Jose Javier Gonzalez Ortiz, Arnav Singhvi, Xabi Andrade, Xinyi Wang, Kartik Sreenivasan et al. (6 additional authors not shown)
- OpenReview Archive Direct Upload
- Readers: Everyone
Controllable Diffusion via Optimal Classifier Guidance
Owen Oertell, Shikun Sun, Yiding Chen, Jin Peng Zhou, Zhiyong Wang, Wen Sun
- Submitted to ICLR 2026
- Readers: Everyone
Expressive Value Learning for Scalable Offline Reinforcement Learning
Nicolas Espinosa-Dice, Kianté Brantley, Wen Sun
- Submitted to ICLR 2026
- Readers: Everyone
Prompt Curriculum Learning for Efficient LLM Post-Training
Zhaolin Gao, Joongwon Kim, Wen Sun, Thorsten Joachims, Sid Wang, Richard Yuanzhe Pang, Liang Tan
- ICLR 2026 Poster
- Readers: Everyone
All Roads Lead to Likelihood: The Value of Reinforcement Learning in Fine-Tuning
Gokul Swamy, Sanjiban Choudhury, Wen Sun, Steven Wu, Drew Bagnell
- ICLR 2026 Poster
- Readers: Everyone
Test Time Scaling of Diffusion Model via Flow Matching Corrector
Sheng-Yen Chou, Yiding Chen, Shikun Sun, Wen Sun
- Submitted to ICLR 2026
- Readers: Everyone
Value-as-Return: A Two-Stage Framework to Align on the Optimal Score Function
Shikun Sun, Shuo Huang, Yiding Chen, Wen Sun, Jia Jia
- Submitted to ICLR 2026
- Readers: Everyone
All Roads Lead to Likelihood: The Value of RL in Fine-Tuning
Gokul Swamy, Sanjiban Choudhury, Wen Sun, Steven Wu, Drew Bagnell
- ARLET
- Readers: Everyone
Scaling Offline RL via Efficient and Expressive Shortcut Models
Nicolas Espinosa-Dice, Yiyi Zhang, Yiding Chen, Bradley Guo, Owen Oertell, Gokul Swamy, Kianté Brantley, Wen Sun
- Arxiv.org
- Readers: Everyone
Scaling Offline RL via Efficient and Expressive Shortcut Models
Nicolas Espinosa-Dice, Yiyi Zhang, Yiding Chen, Bradley Guo, Owen Oertell, Gokul Swamy, Kianté Brantley, Wen Sun
- ARLET
- Readers: Everyone

View all 104 publications

Co-Authors

View all 152 co-authors