OptaPlanner vs. Hexaly 

Are you in need of a powerful optimization solver to tackle complex problems like VRP, TSP, scheduling, and packing? Look no further than Hexaly! I’ve been using it daily, and it’s been an absolute game-changer. It’s not just lightning-fast and user-friendly—it’s incredibly flexible and can easily adapt to your specific needs. With its intuitive Studio, you can design use cases in under 20 lines of code. If you're searching for the fastest, most efficient optimization solver on the market, I wholeheartedly recommend Hexaly. Try it out and experience the results for yourself!

Building a bridge between Model-Based Systems Engineering (MBSE) techniques and Operations Research demanded an optimization solver that could seamlessly combine ease of use with powerful performance. Hexaly Optimizer exceeded all expectations. Its intuitive and elegant mathematical formalism, coupled with lightning-fast, transparent algorithms, provided us with the ideal platform for designing optimized system architectures that met multi-perspective constraints. What truly stands out is how Hexaly's team guided us through the implementation of complex constraints, ensuring everything was tailored to our specific needs. I am truly grateful for their expertise and unwavering support throughout the project, making Hexaly Optimizer an essential tool in our success.

Hexaly revolutionizes the way we complete our patient transport missions, combining efficiency and precision to deliver exceptional schedules. Not only does it save us invaluable time—allowing us to focus on high-impact tasks—but it also enhances our tactical reasoning and medium-term resource planning. With Hexaly, we’re equipped to make smarter decisions and achieve greater results.

We developed the Pasco supply chain optimization model using Hexaly in just a few days, and the results have exceeded all expectations. Hexaly Optimizer delivered outstanding solutions, as praised by Pasco planners, in only a few minutes of run time—even with tens of millions of variables involved. Initially, we could not have imagined solving such a complex problem so efficiently, especially since industry-standard MILP solvers like CPLEX, Xpress, and Gurobi struggled to handle the problem in hours. Thanks to Hexaly's incredible speed and scalability, we now know that even the most challenging optimization tasks are within reach. The performance and capabilities of Hexaly Optimizer have truly transformed our approach to supply chain optimization.

Preparing Fret SNCF train drivers’ schedules is an intricate challenge, balancing numerous operational and regulatory constraints. Tackling such a highly combinatorial problem required a solver capable of mastering this complexity while delivering high-quality solutions quickly. Hexaly Optimizer proved to be the best tool on the market for the job. It empowers us to generate optimized schedules annually and adapt them seamlessly to evolving requirements, ensuring efficiency and compliance in an ever-changing environment.

I have worked with Hexaly on several large-scale optimization projects in highly dynamic environments, and it has consistently proven to be instrumental in delivering high-quality solutions within minutes, meeting the critical need for dynamic re-planning. The unique expressiveness of Hexaly’s modeling API, combined with the highly knowledgeable support team, makes Hexaly my go-to choice for tackling complex optimization problems. Their ability to adapt and respond quickly has been invaluable in ensuring our success across various challenging projects.

The speed, scalability, and unique nonlinear modeling features of Hexaly have enabled us to tackle a variety of problems that MILP solvers like Gurobi and Cplex couldn’t effectively solve. Hexaly Optimizer’s performance has far exceeded our expectations, especially in areas such as traveling salesman (TSP), vehicle routing (VRP), assignment and matching, and facility location problems. With Hexaly, we successfully optimized the entire supply chain network for our customer Argel, achieving an impressive 12% reduction in OPEX. The thorough and responsive support from Nikolas, Senior Optimization Scientist at Hexaly, has been invaluable in helping us make rapid progress on our projects. We are extremely impressed by Hexaly’s capabilities and the substantial impact it has had on our business.

Solving our complex routing problem became a breeze with Hexaly. Its high-level declarative language made tackling multiple constraints intuitive and straightforward. The lightning-fast performance of Hexaly Optimizer didn’t just speed up solving times—it unlocked the ability to run powerful what-if analyses, giving us deeper insights for fleet management decisions. Even the unpredictable, stochastic nature of the problem was no match, as we could simulate hundreds of scenarios in just minutes. Hexaly turned a challenging task into an opportunity for smarter, faster, and more confident decision-making.