[5] Xpress was the first MIP solver to cross the billion matrix non-zero threshold by introducing 64-bit indexing in 2010.
[2] In 2022, Xpress was the first commercial MIP solver to introduce the possibility of solving nonconvex nonlinear problems to proven global optimality.
[9] Mosel includes distributed computing features to solve multiple scenarios of an optimization problem in parallel.
[10] Xpress has a modeling module called BCL (Builder Component Library) that interfaces to the C, C++, Java programming languages, and to the .NET Framework.
The FICO Xpress Executor[12] executes and deploys Mosel models, using SOAP or REST interfaces.