# coin-or/Cbc

COIN-OR Branch-and-Cut solver

Repository: https://github.com/coin-or/Cbc
Canonical: https://ross.abutalabs.com/products/cbc
Language: C++
License: NOASSERTION
License Family: other
Last push: 2026-08-31T23:39:34+00:00

## Health v2 (maintenance only)
Score: 99/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 100, release rhythm 98, longevity 100
- inputs: {"age_days": 2741, "days_push": 2, "days_rel": 19, "gap_med": 9.5, "n_releases_24m": 5}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1009, forks 144 (observed 2026-09-01T02:14:00.451354+00:00)

## What it is
Cbc (Coin-or branch and cut) is an open-source mixed integer linear programming (MILP) solver written in C++. It can be used as a callable library or a stand-alone executable and integrates with many modeling systems such as AMPL, PuLP, JuMP, and OR-Tools.

## Use cases
- solve mixed integer linear programming problems
- solve linear programming models from Python with PuLP
- use a MILP solver as a callable C++ library
- run an open-source alternative to commercial MIP solvers like Gurobi or CPLEX
- solve optimization models written in AMPL or MiniZinc
- integrate branch-and-cut optimization into an application

## When to choose
- you need a free, open-source MILP/LP solver
- you want broad integration with modeling languages like AMPL, JuMP, PuLP, or OR-Tools
- you need both a command-line executable and an embeddable C++ library

## When to avoid
- you need state-of-the-art performance on very large or hard MIP instances where commercial solvers excel
- you need constraint programming or nonlinear optimization rather than linear/integer programming

## Facets
- artifact type: library
- maturity: active
- function: math, sdk, cli
- domain: mathematics, developer-tools
- platform: cpp, cross-platform, cli, python
- tags: mixed-integer-programming, linear-programming, branch-and-cut, optimization, operations-research, solver, coin-or, algorithms

## Member repositories
- coin-or/Cbc (main) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-09-01T02:14:00.451354+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:12:08.690530+00:00, confidence not recorded.
  - readme: https://github.com/coin-or/Cbc (fetched 2026-09-01T02:14:00.451354+00:00, sha 8402681de554)
- Data as of 2026-08-30T08:39:29.467469+00:00.