Nilesh Tripuraneni
Nilesh Tripuraneni is a machine learning researcher at Google DeepMind who works on language models, including Gemini. A Harvard physics graduate, he completed an M.Phil. at the University of Cambridge under Zoubin Ghahramani, and his paper Lost Relatives of the Gumbel Trick won an ICML 2017 honorable mention. His PhD at the University of California, Berkeley, advised by Michael Jordan, ended with a 2022 dissertation on transfer learning and robust learning, after a 2020 NeurIPS paper on the theory of transfer learning. He appears among the authors of the Gemini and Gemini 1.5 reports in 2023 and 2024 and of the Michelangelo long-context evaluation in 2024, and in July 2026 he coauthored a paper on estimators for randomized control trials.
- Now at
- Google DeepMind
- Badges
Timeline
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2017
Cambridge and Magnetic HMC
A physics graduate of Harvard University, he completes an M.Phil. at the University of Cambridge under the supervision of Zoubin Ghahramani. In 2017, he coauthors Magnetic Hamiltonian Monte Carlo with Mark Rowland, Ghahramani and Richard Turner, a generalization of Hamiltonian Monte Carlo that uses non-canonical Hamiltonian dynamics.
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2017
An ICML 2017 honorable mention
Lost Relatives of the Gumbel Trick, written with Matej Balog, Zoubin Ghahramani and Adrian Weller, earns an honorable mention among the ICML 2017 awards. The paper derives a family of methods, of which the Gumbel trick is one member, for sampling from a discrete distribution or estimating its partition function.
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2020
Theory of transfer learning
In 2020, he publishes On the Theory of Transfer Learning: The Importance of Task Diversity at NeurIPS with Michael I. Jordan and Chi Jin. The paper gives statistical guarantees for transfer through a feature representation shared across tasks, built on a new notion of task diversity.
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2022
A Berkeley PhD under Jordan
He completes a PhD in computer science at the University of California, Berkeley in 2022, advised by Michael Jordan. His dissertation, Learning Beyond the Standard Model (of Data), develops theory for transfer learning and robust learning, asking why pretraining is so effective and what the limits of learning are for extremely heavy-tailed distributions.
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2023–2024
The Gemini and Gemini 1.5 reports
He appears among the authors of the Gemini report in December 2023, which introduces the multimodal Gemini family of Ultra, Pro and Nano models. He is listed again on the Gemini 1.5 report in March 2024, which covers models that recall and reason over millions of tokens of context.
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September 2024
Michelangelo long-context evaluation
In September 2024, he coauthors Michelangelo with Kiran Vodrahalli, Santiago Ontanon and colleagues. The paper introduces a synthetic long-context reasoning evaluation for large language models, built on a framework called Latent Structure Queries.
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July 2026
Optimal estimators for randomized trials
In July 2026, he coauthors Towards Optimal Estimators for Randomized Control Trials with Harsh Parikh, Dhruv Madeka, Michael I. Jordan and others. The paper proposes a framework for identifying optimal estimators within families of randomized controlled trials.
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As of October 2026
Researcher at Google DeepMind
He is a researcher at Google DeepMind, where he works on language models, including Gemini, and on broader topics in machine learning and artificial intelligence.
Career
- NowGoogle DeepMindResearcher
Education
Sources and credits
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- Nilesh Tripuraneni
- Magnetic Hamiltonian Monte Carlo
- ICML 2017 Awards
- Lost Relatives of the Gumbel Trick
- On the Theory of Transfer Learning: The Importance of Task Diversity
- Learning Beyond the Standard Model (of Data)
- Gemini: A Family of Highly Capable Multimodal Models
- Gemini 1.5: Unlocking multimodal understanding across millions of tokens of context
- Michelangelo: Long Context Evaluations Beyond Haystacks via Latent Structure Queries
- Towards Optimal Estimators for Randomized Control Trials
- Nilesh Tripuraneni – MLG Cambridge


