Abstract: I shall talk about FlexibleSUSY, a Mathematica and C++ package, which generates fast, precise C++ spectrum generators for any non-supersymmetric as well as supersymmetric models specified by the user. The model is specified by supplying the superpotential or Lagrangian, gauge structure and particle content in a SARAH model file; specific boundary conditions e.g. at the GUT, weak or intermediate scales are defined in a separate FlexibleSUSY model file. From these model files, FlexibleSUSY generates a C++ program that can solve for the spectrum of the model, including loop-corrected pole masses, consistent with user specified boundary conditions. FlexibleSUSY provides a calculator of the anomalous magnetic moments and electric dipole moments of leptons. A hybrid calculation of the Higgs mass is also available which combines the virtues of both the effective field theory approach and fixed-order calculations.