: Part of the COIN-OR project, known for being a robust, "safe default" that performs well without heavy tuning.
: One of the fastest non-commercial solvers for MIP and Mixed-Integer Nonlinear Programming (MINLP). As of late 2025, major versions are available under the Apache 2.0 open-source license. Solver Software Open Source
: The industry standard for large-scale continuous nonlinear optimization, used extensively in scientific computing. : Part of the COIN-OR project, known for