Gurobi 13

[quentinplsrd]

Will there be a new pip ortools version that connects to the version 13.0 of Gurobi?
Thanks

[lperron]

you can already use it. You need to pass the path to the gurobi library in the python ortools.init module

[quentinplsrd]

I cannot see any reference to gurobi in the "init.py" file

[Mizux]

stable (v9.14)

or-tools/ortools/gurobi/environment.cc

Lines 409 to 418 in 93dafb7

	#if defined(__GNUC__) // path in linux64 gurobi/optimizer docker image.
	for (const absl::string_view version :
	{"12.0.2", "12.0.1", "12.0.0", "11.0.3", "11.0.2", "11.0.1", "11.0.0",
	"10.0.3", "10.0.2", "10.0.1", "10.0.0", "9.5.2", "9.5.1", "9.5.0"}) {
	potential_paths.push_back(
	absl::StrCat("/opt/gurobi/linux64/lib/libgurobi.so.", version));
	}
	#endif
	return potential_paths;
	}

[Mizux]

main:

or-tools/ortools/third_party_solvers/gurobi_environment.cc

Lines 337 to 343 in 1ccab56

	std::vector<std::string> GurobiDynamicLibraryPotentialPaths() {
	std::vector<std::string> potential_paths;
	const std::vector<absl::string_view> kGurobiVersions = {
	"1202", "1201", "1200", "1103", "1102", "1101", "1100",
	"1003", "1002", "1001", "1000", "952", "951", "950",
	"911", "910", "903", "902", "811", "801", "752"};
	potential_paths.reserve(kGurobiVersions.size() * 3);

[Mizux]

seems we need to add 1203 and 1300
https://support.gurobi.com/hc/en-us/articles/360048138771-Gurobi-release-and-support-history

[lperron]

https://or-tools.github.io/docs/pdoc/ortools/init/python/init.html#CppBridge.load_gurobi_shared_library Laurent Perron | Operations Research | ***@***.*** | (33) 1 42 68 53 00 Le jeu. 20 nov. 2025 à 16:59, quentinplsrd ***@***.***> a écrit :

…

I cannot see any reference to gurobi in the "*init*.py" file — Reply to this email directly, view it on GitHub <#4920 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACUPL3PLRP4R7VZONPNCUKL35XQMLAVCNFSM6AAAAACMTWELDWVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTKMBSHA2TQMI> . You are receiving this because you modified the open/close state.Message ID: ***@***.***>

[JesusMaryJ]

Not sure if this is the right place to ask this, but for the C# version of or-tools, is there any way that we can load Gurobi 13? Will it possibly be available in the next release?

[lperron]

The init module is available in c#. You can load the gurobi lib using that module. Laurent Perron | Operations Research | ***@***.*** | (33) 1 42 68 53 00 Le mar. 2 déc. 2025, 23:32, Jesus Mary ***@***.***> a écrit :

…

Not sure if this is the right place to ask this, but for the C# version of or-tools, is there any way that we can load Gurobi 13? Will it possibly be available in the next release? — Reply to this email directly, view it on GitHub <#4920 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACUPL3KY7ZGG77E3CTIZDKD37YHPVAVCNFSM6AAAAACMTWELDWVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTKMJUGEYDQMA> . You are receiving this because you modified the open/close state.Message ID: ***@***.***>