Search
Close this search box.

CONOPT Solver: Download, Pricing & Documentation

Leverage CONOPT’s Strengths with AMPL

A proven choice for highly nonlinear problems, CONOPT’s efficient and reliable multi-method architecture handles a broad range of models. Specialized techniques achieve feasibility quickly, while powerful preprocessing tools reduce problem size and suggest formulation improvements.

Unlock new possibilities

Book a Free Demo or Pricing Discussion

About CONOPT

Current Developer: GAMS

Original Developer: ARKI Consulting & Development A/S

Current version: 3.17A

CONOPT is a robust and widely used solver specifically designed for tackling large-scale nonlinear optimization problems. Its strength lies in its ability to handle various types of nonlinearities, both in the objective function and constraints. This makes it particularly well-suited for complex optimization problems in diverse fields like engineering, economics, and finance.

CONOPT employs a combination of powerful algorithms, including the feasible-path generalized reduced gradient (GRG) method and sequential quadratic programming (SQP). This blend enables it to efficiently navigate complex problem landscapes, often finding optimal solutions or identifying infeasibility when constraints cannot be satisfied.

Furthermore, CONOPT boasts several features that enhance its problem-solving capabilities. It pre-processes models to identify and eliminate redundant elements, improving computational efficiency. Additionally, it can leverage second-order derivatives, leading to faster convergence and more accurate solutions in certain cases. While CONOPT might not be the optimal choice for every problem, its versatility, efficiency, and ability to handle challenging nonlinearities make it a valuable tool in the optimization toolbox.

Problem types supported

Linear, quadratic, and general smooth nonlinear objectives and constraints in continuous variables.

Algorithms available

Dynamic selection among feasible-path generalized reduced gradient, sequential quadratic programming, and sequential linear programming.

Special features

Extensions to the basic algorithms take advantage of second derivatives and identify feasible solutions more reliably.

Download CONOPT for All Platforms - Windows, Linux, macOS

Experience the power of CONOPT on the AMPL Portal, available for Windows, Linux, and macOS. 
CONOPT can be used with AMPL from various programming languages using our APIs