BARON is a computational system for solving non-convex optimization problems to global optimality. Purely continuous, purely integer, and mixed-integer nonlinear problems can be solved by the solver. Linear programming (LP), nonlinear programming (NLP), mixed integer programming (MIP), and mixed integer nonlinear programming (MINLP) are supported. In a comparison of different solvers, BARON solved the most benchmark problems and required the least amount of time per problem.^[1]

BARON is available under the AIMMS, AMPL, GAMS, JuMP, MATLAB, Pyomo, and YALMIP modeling environments on a variety of platforms. The GAMS/BARON solver is also available on the NEOS Server.^[2]

The development of the BARON algorithms and software has been recognized by the 2004 INFORMS Computing Society Prize^[3] and the 2006 Beale-Orchard-Hays Prize^[4] for excellence in computational mathematical programming from the Mathematical Optimization Society. BARON's inventor, Nick Sahinidis,^[5] was inducted into the National Academy of Engineering in October 2022 for his contributions to science and engineering.