UltraNest - a robust, general purpose Bayesian inference engine

UltraNest is a general-purpose Bayesian inference package for parameter estimation and model comparison. It allows fitting arbitrary models specified as likelihood functions written in Python, C, C++, Fortran, Julia or R. With focus on correctness speed (in that order), especially useful multi-modal non-Gaussian spaces, computational expensive models, robust pipelines. Parallelisation to computing clusters resuming incomplete runs available.