Licensing and payment options for your project's needs.

Use AMPL free in the Community Edition until you need the long-term power of a commercial solver. Upgrade your Community Edition license directly into a commercial license without losing the work you’ve already created. 

Commercial Solver Pricing

All solver prices include a full AMPL license and the complete AMPL system of APIs, IDE, Data connectors and more. 

*See below for full information on all included AMPL products.

Subscription
Purchase + Maintenance
Solver Type Solver Name Single-User License Single-Session License Multi-User License Additional Threads

Linear -

Quadratic

$6,000

$9,000

$11,500

$225

$7,750

$11,750

$19,000

$600

$7,000

$10,500

$15,000

$400

Nonlinear

$5,000

$8,500

$13,000

$300

$5,000

$7,500

$11,000

$200

$4,500

$6,750

$10,000

$150

$4,500

$6,750

$10,000

$150

$4,600

$6,900

$10,200

$160

Global

$5,000

$7,500

$11,000

$200

$4,000

$6,000

$9,000

$100

$6,500

$9,250

$13,500

$325

LINDO Global Basic

$5,000

$7,500

N/A

N/A

$7,000

$10,500

The AMPL system included in every license and bundle

All AMPL licenses provide you with the powerful optimization system of writing AMPL models with our IDE, and connecting to your data from databases, spreadsheets and CSV files.

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AMPL IDE is a ready-to-go visual development environment with built-in controls for optimization model development and testing.

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Integrate your optimization models with spreadsheet and relational sources, locally or in the cloud. AMPL’s table handlers establish fast connections for data input and result output.

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Try out the features of all the best solvers, without changing your model or data. AMPL’s standard interface lets you focus first on modeling and then choose the optimization engine that meets your needs.

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Build optimization into your enterprise systems or software products, using AMPL’s application programming interfaces. AMPL offers fast connections to Python, R, C++, C#, MATLAB, and Java, while maintaining your model in its
original, readable form.

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Master the AMPL language and system quickly with our introductory materials, examples, and documentation. The AMPL book provides a complete tutorial introduction (and it’s great for teaching, too).

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Extensive documentation for newcomers and experts alike. Learn how to install, use, integrate and deploy AMPL models and applications.

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Count on our team to help you in all stages of application building. Our technical staff provides expert advice on AMPL, solvers, and optimization, and our consulting service can help you build and integrate your models.

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Join the conversation and receive support in our google forum. Our expert technical support team answers your questions and provides continuous content upgrades. 

Individual AMPL License Pricing & Parameters

Purchase an AMPL only license to pair with a commercial solver sourced and paid for outside of AMPL.

*If you only need an AMPL license, and never a commercial solver, use AMPL free, forever, with a Community Edition license. Learn more here.

Subscription
Purchase

Single-User License

$ 3,000 Annually
  • Unlimited Problem Size
  • Unlimited Concurrent Processes
  • 1 Concurrent User
  • 1 Concurrent Machine
  • 16 Threads

Single-Session License

$ 4,500 Annually
  • Unlimited Problem Size
  • 1 Concurrent Process
  • 1 Concurrent User
  • 1 Concurrent Machine
  • Unlimited Threads

Multi-User License

$ 7,000 Annually
  • Unlimited Problem Size
  • Unlimited Concurrent Processes
  • Unlimited Concurrent Users
  • Unlimited Concurrent Machines
  • 16 Threads

Yes! We make it very easy to test AMPL before making purchases. You can download and start using the AMPL Community Edition, a 30-day full trial or a size-limited demo.

We are confident AMPL will meet all of your needs. To be sure, compare AMPL and other modeling languages on the NEOS server. Learn more here.

Setting up an account only takes as much time as is needed to create the custom bundle that will work best for your particular situation. You can start modeling right away with a free Community Edition license with free commercial solver trials. We will expand your license to include all your paid license features.

Yes, you need only give us an email address for the cardholder. We will then send a message to that address containing instructions for entering the credit card number through a secure web interface. (PayPal acts as our credit card processor for this transaction, and you will see their logo on the email, but there is no requirement that you register for their services.)

Discounts may be available on purchases of multiple AMPL or solver licenses. Previous purchases can be counted toward volume discounts provided their maintenance is current. Please contact us at sales@ampl.com for details.

AMPL maintenance and support service includes access to AMPL and solver software updates, regeneration of license files necessitated by hardware changes, and technical assistance with installation and execution. The quoted prices include one year of maintenance and support. Subsequent maintenance and support service is charged at an annual rate equal to a percentage, currently 20%, of the license price in effect at the time of renewal.

Maintenance and support will be billed annually unless cancelled in writing by the customer prior to the renewal date. Contact us at sales@ampl.com for information on upgrades to copies not currently under maintenance.

AMPL does not have any built-in solvers. Often it is convenient to order one of the popular solvers that we sell directly, but you can also choose from many other AMPL-interfaced solvers available for purchase or download from independent sources. AMPL automatically recognizes any compatible solvers on your system, and there is never a charge for a “solver link”.

As listed above, we offer many popular solvers for direct purchase; refer to Solvers We Sell to learn more, including problem types supported and methods used. Our prices for these solvers apply to the versions that incorporate an AMPL interface; a previously or concurrently purchased copy of the AMPL software is needed to use these versions. Programming libraries and other forms of these solvers are not included.

By using the purchased software you agree to our Terms & Conditions governing the licensing and use of AMPL products. Contact us if your organization has special requirements for license agreements.

AMPL may be purchased by itself for connection to solvers sold by other vendors and to noncommercial or experimental solvers. Contact us or consult our solvers overview page for points to detailed information about all solver alternatives.

All licenses start as a free Community Edition license file downloaded to your machine. Once your account has been figured out and activated, we will simply extend your Community Edition file.

Each single license allows the product to be run by any number of users in any number of simultaneous processes, on one designated computer. (KNITRO is limited to one user.)

Each floating license allows one single license at a time to be activated on any computer where the product is installed. One computer must be designated as the license server; it may manage any number of floating licenses and may be configured to restrict requests to a specified list of network (IP) address ranges.

AMPL Consulting

Need a solution and not just a product?

We pride ourselves on empowering your modelers and enabling you and your team to build what you need. For those times when you need help formulating your models or building out your application, or even thinking strategically about your organization's optimization goals, we are here to help. 

How to buy commercial licenses

Ready to get started? Get in touch – we’re here to help!  

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Choose the AMPL and solver licenses that work best for your project and contact us to get started.
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If you are not already using a free licenses, create an account in the License Portal and download the Community Edition to start modeling right away.
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We will extend your Community Edition license to include your paid contract.