Pyro is a universal probabilistic programming language (PPL) written in Python and supported by PyTorch on the backend. Pyro enables flexible and expressive deep probabilistic modeling, unifying the best of modern deep learning and Bayesian modeling.

Pyro is a graduation-stage project of the LF AI & Data Foundation.

Contributed by: Uber in January 2019 as an incubation-stage project and graduated in February 2021.