Frequently asked questions

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Yes, we offer IBM ILOG CPLEX Optimization Community Edition for free. You can register to download it at the link below. The Community Edition is restricted to problems up to 1000 variables and 1000 constraints. A time-limited trial without restrictions on problem size is available upon request.

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Besides the commercial version, IBM runs the IBM Academic Initiative where students and faculty members have access to the product at no cost. Our academic entry is without functional or and model size limitations, and you must register to check your eligibility.

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The IBM ILOG CPLEX Optimization Studio subscription can be purchased as a monthly subscription and is charged at the beginning of the monthly billing period. You will be automatically billed on a periodic basis, according to the terms of your subscription.

Before you reach to the next month of your IBM ILOG CPLEX Optimization Studio subscription offering, you have to contact eCare to cancel your automatic renewal.

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A single subscription may include one or more users, and each user receives a personal key to unlock the software. Each member of your team who uses IBM ILOG CPLEX Optimization Studio needs to have his/her own key. Users can be managed from My Products and Services.

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Each day when the first "solve" happens, the software goes to check eligibility to use the product unlimited. However, after at least one check, the user can be offline for 14 days before the product goes back to the limited mode.

IBM has perpetual licenses for development and deployment as well as hosted cloud offerings. Machine-capacity and user-based entitlements in addition to thread-based for clusters are also available. Contact an IBM sales representative or see below for more details on the hosted cloud offering.

The IBM ILOG CPLEX Optimization Studio subscription allows only development use. There is unlimited variables and constraints and support is included as long as the subscription is active.

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