John Thickstun
John Thickstun is a computer scientist whose research on machine learning and generative models centers on controlling what the models produce, with applications in music. After studying applied mathematics at Brown University, he earned a PhD at the University of Washington's Allen School, where he introduced the MusicNet dataset in 2016 with his advisers Sham Kakade and Zaid Harchaoui. The MAUVE measure for comparing machine-written and human-written text, which he coauthored, received a NeurIPS Outstanding Paper Award in 2021, and Backpack Language Models received an ACL Outstanding Paper award in 2023. As a Stanford postdoctoral scholar advised by Percy Liang, he developed the Anticipatory Music Transformer, which lets a composer write part of a piece and ask the model to fill in the rest. He joined Cornell in 2024 and is an assistant professor of computer science there.
- Now at
- Cornell University
Timeline
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2016
MusicNet and a Washington PhD
He studies applied mathematics at Brown University, advised by Eugene Charniak and Björn Sandstede, then earns a PhD in the Allen School of Computer Science & Engineering at the University of Washington, co-advised by Sham Kakade and Zaid Harchaoui. In 2016, he and those two advisers introduce MusicNet, a dataset of freely licensed classical recordings with over 1 million temporal labels on 34 hours of chamber music.
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2021
MAUVE and a NeurIPS award
In 2021, MAUVE, which he coauthors with Krishna Pillutla, Swabha Swayamdipta, Rowan Zellers, Sean Welleck, Yejin Choi and Zaid Harchaoui, receives a NeurIPS Outstanding Paper Award. The measure compares the distribution of a text generation model with the distribution of human-written text using divergence frontiers.
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2022
The Diffusion-LM language model
In 2022, he coauthors Diffusion-LM with Xiang Lisa Li, Ishaan Gulrajani, Percy Liang and Tatsunori Hashimoto. The non-autoregressive language model denoises Gaussian vectors into word vectors step by step, which allows gradient-based control over fine-grained properties of the text, and the paper is a NeurIPS 2022 oral presentation.
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2023
Backpacks and text watermarks
In 2023, he coauthors Backpack Language Models with John Hewitt, Christopher Manning and Percy Liang, an architecture that gives each word several sense vectors that can be inspected and edited to steer the model; the ACL paper receives an Outstanding Paper award. With Rohith Kuditipudi, Tatsunori Hashimoto and Percy Liang, he also proposes robust watermarks for text from autoregressive language models that leave the distribution over text undistorted.
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2023
The Anticipatory Music Transformer
Having learned the cello as a child, he develops the Anticipatory Music Transformer in 2023 with David Hall, Chris Donahue and Percy Liang at Stanford's Center for Research on Foundation Models, while a postdoctoral scholar at Stanford advised by Liang. The model uses a method called anticipation to interleave events and controls, so a composer can write part of a piece and ask the model to fill in the rest; it is trained on the Lakh MIDI dataset. Human evaluators report accompaniments with similar musicality to human-composed music over a 20-second clip.
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2024
Assistant professor at Cornell
He joins Cornell's Ann S. Bowers College of Computing and Information Science in fall 2024 as an assistant professor of computer science, based on the Ithaca campus. His work covers machine learning and generative models.
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2025
AI policy and a screenplay
In March 2025, he joins six Cornell colleagues in a proposal for the White House's AI Action Plan that emphasizes the need for sustained investment in AI education and research. In April 2025, Stanford HAI publishes his conversation with filmmaker Sophie Barthes about a screenplay on text watermarking that the two began at Stanford's Stories for the Future workshop. In October 2025, he speaks at TEDAI on research and investment in technical control mechanisms for generative AI.
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As of October 2026
Controllable generation at Cornell
He is an assistant professor of computer science at Cornell, working on methods that control the behavior of generative models, including applications in music technologies. In 2026, he coauthors Esoteric Language Models, an ICML paper that fuses autoregressive and masked diffusion language models.
Career
- Since 2024Cornell UniversityAssistant professor of computer science
- Stanford UniversityPostdoctoral scholar
Education
Sources and credits
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- John Thickstun | Department of Computer Science | Cornell Bowers
- Learning Features of Music from Scratch (arXiv:1611.09827)
- NeurIPS 2021 Awards
- Announcing the NeurIPS 2021 Award Recipients
- John Thickstun
- Backpack Language Models - ACL Anthology
- Robust Distortion-free Watermarks for Language Models | Stanford CRFM
- A Composer's Helper: Using AI to Create New Harmonies | Stanford HAI
- Anticipatory Music Transformer: A Controllable Infilling Model for Music | Stanford CRFM
- Anticipatory Music Transformer (arXiv:2306.08620)
- Seven faculty hired during recruiting season | Cornell Bowers
- Securing America's AI Future: Cornell faculty offer recommendations for White House's AI Action Plan
- Exploring the Ethics of AI through Narrative | Stanford HAI


