Overview of grand unified models and their predictions for neutrino oscillations

A brief overview of grand unified models is presented with some attention paid to their predictions for neutrino oscillations. Given the well-known features of the two non-unified standard models, standard model (SM) and minimal supersymmetric standard model (MSSM), a listing of the features of classes of unified models is given, where a grand unified theory (GUT) flavor symmetry and/or family symmetry are introduced to reduce the number of model parameters. Some general remarks are then made concerning the type of predictions that follow for the neutrino masses and mixings.