JMLR

A Library for Learning Neural Operators

Authors
Kamyar Azizzadenesheli Jean Kossaifi Anima Anandkumar Nikola Kovachki Zongyi Li David Pitt Miguel Liu-Schiaffini Robert J. George Boris Bonev Julius Berner Valentin Duruisseaux
Paper Information
  • Journal:
    Journal of Machine Learning Research
  • Added to Tracker:
    Sep 09, 2026
Abstract

We present NeuralOperator, an open-source Python library for operator learning. Neural operators generalize neural networks to maps between function spaces instead of finite-dimensional Euclidean spaces. They can be trained and inferenced on input and output functions given at various discretizations, satisfying a discretization convergence properties. Part of the official PyTorch Ecosystem, NeuralOperator provides all the tools for training and deploying neural operator models, as well as developing new ones, in a high-quality, tested, open-source package. It combines cutting-edge models and customizability with a gentle learning curve and simple user interface for newcomers and researchers.

Author Details
Kamyar Azizzadenesheli
Author
Jean Kossaifi
Author
Anima Anandkumar
Author
Nikola Kovachki
Author
Zongyi Li
Author
David Pitt
Author
Miguel Liu-Schiaffini
Author
Robert J. George
Author
Boris Bonev
Author
Julius Berner
Author
Valentin Duruisseaux
Author
Citation Information
APA Format
Kamyar Azizzadenesheli , Jean Kossaifi , Anima Anandkumar , Nikola Kovachki , Zongyi Li , David Pitt , Miguel Liu-Schiaffini , Robert J. George , Boris Bonev , Julius Berner & Valentin Duruisseaux . A Library for Learning Neural Operators. Journal of Machine Learning Research .
BibTeX Format
@article{paper1657,
  title = { A Library for Learning Neural Operators },
  author = { Kamyar Azizzadenesheli and Jean Kossaifi and Anima Anandkumar and Nikola Kovachki and Zongyi Li and David Pitt and Miguel Liu-Schiaffini and Robert J. George and Boris Bonev and Julius Berner and Valentin Duruisseaux },
  journal = { Journal of Machine Learning Research },
  url = { https://www.jmlr.org/papers/v27/26-0434.html }
}