While benchmark test results can fluctuate over time as different companies introduce new versions, Gurobi has consistently been the company to beat. In addition, with our single-minded focus on optimization, in just five years we’ve increased MIP solver performance by a factor of 27X and LP solver performance by a factor of 5X. This is important since you aren’t just buying based on today’s performance, but also on the confidence you will continue to get leading performance over time.
This is possible in part because we aren't saddled with legacy code. We've built each of our solvers from the ground up using the latest algorithmic developments and implementation techniques. There is no fixed size limit — the Gurobi Optimizer routinely solves models with millions of variables and constraints, even on standard laptop and desktop computers. More importantly, you can see the results in Gurobi's performance, particularly on larger, more difficult models. In fact, Gurobi recently solved 11 models in the MIPLIB2010 library that had not previously been solved by any other solver.
In addition, since reliability is just as important as performance, every feature and version of our solvers is fully tested against literally thousands of real-world instances, including both standard public benchmark test sets and extremely challenging, large-scale, industrial models from our customers.