Gwyneth Butera

For the latest list of known issues, please see the release notes in the Gurobi Documentation. Known issues in Gurobi 13.x Fixed issues in Gurobi 13.x Bug Fixes in previous versions

With the release of Gurobi Optimizer v12, there was a significant change in how AMPL integrates with Gurobi. Historically, Gurobi provided a separate solver package for AMPL users, which would need...

As an academic user, how do I get a free Gurobi license?Our goal is to provide free academic licenses to qualified students, faculty, and staff at recognized degree-granting academic institutions. ...

Are you ready to set up a Burrito Game competition between your friends, students, and/or colleagues? This guide will walk you through how to create a new competition and join an existing one in Ch...

Gurobi's 'compute IIS' feature is designed to address the query: "What subset of model constraints is responsible for making the model infeasible?" In this article, we will show how to use this fea...

In the output log (typically gurobi.log), you might see the messageUser MIP start did not produce a new incumbent solutionThis message is printed when Gurobi rejects a provided MIP start. There are...

If the result that Gurobi returns is not one that you expected, the first step is to identify the type of wrong result.Some common situations: Gurobi says the model is infeasible, but you expect it...

A great productivity feature of the whole Python ecosystem is the availability and accessibility of tools such as interactive notebooks and integrated development environments. Three such tools are...

When you want to change the values of Gurobi parameters, you have several options. Setting parameters▸From the Python API You have several options to set parameters in the Python interface.  Here a...

Please note that starting with version 11.0.2, the Gurobi Interactive Shell has been deprecated. The Gurobi Interactive Shell (gurobi.sh or gurobi.bat) was a set of extensions to the Python shell t...