Sophia Tang

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sophtang [at] engineering.upenn.edu

Hi! I'm a final-year undergraduate at the University of Pennsylvania building foundations of generative modeling for science, currently in the Chatterjee Lab and visiting the Kempner Institute at Harvard.

Research areas · hover to preview, click to filter my papers
Methods
Applications
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I also write long-form tutorial papers on foundational topics in machine learning and shorter technical articles on my Substack, Alchemy Bio. Featured below ↓

More in technical articles →

Aside from research, I study computer science and statistics in the Jerome Fisher Program in Management & Technology. I'm always exploring new theoretical ideas and thinking about interesting problems to apply them to. If any of these topics sparks your interest, I would love to connect!


Updates

Sep 24, 2026 Four papers accepted at NeurIPS 2026 main: Expanding Flow Maps 🌊, EntangledSBM ⚛️, ActFlow 🧬, and Beckmann Transport Models 💫! See you in Sydney 🇦🇺
Sep 15, 2026 Discrete Beckmann Transport Models 🛸 is out! We introduce a framework for discrete generation that learns an autonomous transport map for one- and few-step language modeling and reasoning! Also be sure to check out Beckmann Transport Models
Aug 23, 2026 I am co-organizing the Beyond Next Token Prediction (BeNTo) 🍱 workshop at NeurIPS 2026 in Sydney! Submit your newest work in generative modeling via OpenReview by August 29th!
Jul 24, 2026 Expanding Flow Maps 🌊 is out! We develop a generalizable framework for learning generative flows with dynamically increasing dimensionality!
Jun 15, 2026 A2D2 🃏 and mRNAutilus 🧬 are out! A new framework for reward-alignment of any-length discrete diffusion with adaptive decoding, and an experimentally-validated multi-objective mRNA generative model!
Mar 20, 2026 New tutorial paper on the Foundations of Schrödinger Bridges for Generative Modeling (220 pages, 24 figures) is out on arXiv!
Jan 26, 2026 Branched Schrödinger Bridge Matching is accepted at ICLR 2026 main! 🌳🧫 Looking forward to presenting in Rio! 🇧🇷
Jan 23, 2026 Awarded the CRA Outstanding Undergraduate Researcher Award (1 of 8 across North America)! Read the news article here!
Nov 11, 2025 EntangledSBM is out! Read our paper on simulating interacting multi-particle systems with a novel Schrödinger bridge matching framework!
Sep 30, 2025 TR2-D2 is out! Read our paper on off-policy RL for discrete diffusion fine-tuning with multi-objective rewards!
May 01, 2025 PepTune: De Novo Generation of Therapeutic Peptides with Multi-Objective-Guided Discrete Diffusion accepted at ICML 2025! Come by us at Poster Session 4 to chat (+ free PepTune stickers)

Selected Publications

  1. discrete-btm.png
    Sophia Tang and Shiyi Wang
    arXiv preprint arXiv:2609.15903, Sep 2026
  2. btm.png
    Cheuk-Kit Lee , Florentin Coeurdoux , Yuyuan Chen , Sophia Tang , Peter Potaptchik , Yilun Du , Michael Samuel Albergo and Eric Vanden-Eijnden
    Advances in Neural Information Processing Systems (NeurIPS 2026), Aug 2026
  3. Sophia Tang and Pranam Chatterjee
    Advances in Neural Information Processing Systems (NeurIPS 2026), Jul 2026
  4. Sophia Tang , Yuchen Zhu , Molei Tao and Pranam Chatterjee
    arXiv preprint arXiv:2606.13565, Jun 2026
  5. actflow.png
    Riccardo De Santi , Bruce Lee , Cristian Perez Jensen , Kimon Protopapas , Sophia Tang , Cheng-Hao Liu , Pranam Chatterjee , Yisong Yue and Andreas Krause
    Advances in Neural Information Processing Systems (NeurIPS 2026), Jun 2026
  6. Sawan Patel* , Sophia Tang* , Yesol Kim* , Yinuo Zhang , Divya Srijay , Ping-Jung Lin , Shambhavi Shubham , Fengmei Pi , Cedric Wu , Sherwood Yao and Pranam Chatterjee
    arXiv preprint arXiv:2605.31296, Jun 2026
  7. td3b.png
    Hanqun Cao* , Aastha Pal* , Sophia Tang , Yinuo Zhang , Jingjie Zhang , Pheng Ann Heng and Pranam Chatterjee
    International Conference on Machine Learning (ICML 2026) Spotlight, May 2026
  8. foundations-sbm.png
    Sophia Tang
    arXiv, Preprint, Mar 2026
  9. Sophia Tang , Yinuo Zhang and Pranam Chatterjee
    Advances in Neural Information Processing Systems (NeurIPS 2026), Nov 2025
  10. Sophia Tang* , Yuchen Zhu* , Molei Tao and Pranam Chatterjee
    arXiv, Preprint, Sep 2025
  11. branchsbm.png
    Sophia Tang , Yinuo Zhang , Alexander Tong and Pranam Chatterjee
    International Conference on Learning Representations (ICLR 2026), Jun 2025
  12. mog-dfm.png
    Tong Chen , Yinuo Zhang , Sophia Tang and Pranam Chatterjee
    arXiv, Preprint, May 2025
  13. guidance.png
    Sophia Tang , Yinuo Zhang , Alexander Tong and Pranam Chatterjee
    arXiv, Preprint, May 2025
  14. Sophia Tang* , Yinuo Zhang* and Pranam Chatterjee
    International Conference on Machine Learning (ICML 2025), Dec 2024

Invited Talks

  1. Sep 2026
    Discrete Beckmann Transport Models for One-Step Language Modeling and Reasoning
    Discrete Diffusion Reading Group
  2. July 2026
    Expanding Flows for Fast and Flexible Generation Beyond the Fixed Canvas
    Microsoft Research New England Generative Modeling & Sampling Seminar
  3. July 2026
    Spherical Equivariant Graph Transformers
    Cambridge Ellis Unit Summer School on Probabilistic Machine Learning 2026
  4. Nov 2025
    Peptune: De Novo Generation of Therapeutic Peptides with Guided Discrete Diffusion
    Discrete Diffusion Reading Group
  5. July 2025
    Branched Schrödinger Bridge Matching
    Starkly Speaking Reading Group