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GAMS Distribution 24.8.5 (May, 10, 2017)

The documentation is also included in the GAMS distribution in electronic form. Hard copies of the GAMS User's Guide and some solver manuals can be ordered through Amazon.

Please consult the release notes before downloading a system. Here are the installation notes.

Platform Notes
MS Windows 32 bit Windows Vista or newer on AMD- or Intel-based (x86_32) architectures. (zip'ed installersee 2))
MS Windows 64 bit Windows Vista or newer on AMD- or Intel-based (x86_64) architectures. (zip'ed installersee 2))
Linux 64 bit AMD- or Intel-based 64-bit (x86_64) Linux systems with glibc 2.7 or higher.
Mac OS X Intel-based 64-bit (x86_64) Macintosh system with OS X 10.10 (Yosemite) or higher. Please note that this is a OS X Terminal application and must be executed using the command line interface. (sfx installer)
Solaris i86pc AMD- or Intel-based 64-bit (x86_64) Solaris system. Built on Solaris 11.0.
Solaris SPARC 64bit Sparc-based 64-bit (sparc_64) Solaris system. Built on Solaris 10.
IBM AIX PowerPC based 64-bit (ppc_64) AIX system. Built on AIX 7.1.

Please visit this page to download older GAMS distribution.


  1. There are some mailing lists, which will inform you about forthcoming releases, provide additional information, and are useful for questions about GAMS and modeling issues.
  2. Microsoft Internet Explorer users who have enabled SmartScreen Filter may get several warnings during the download of a GAMS system. If you do not want to ignore these messages, please download the "zip-ed installer" from the list above and unzip this file before running the setup program.
  3. Also Windows 8 and newer use the SmartScreen Filter and might give a warning. For more information please check our Support Wiki.
  4. MD5-Hash values (use a program like md5sum to verify):
    e7c0b1d719db358efd95245b5d56463d aix_ppc_64_sfx.exe
    4c2674d6eb29a3facff33659bdc13f8d linux_x64_64_sfx.exe
    d3db9c60994ba789d00d954086680f14 GAMS24.8.dmg
    f8ee0b2142071cec633e6ed4e83894e5 osx_x64_64_sfx.exe
    8805843e18f179701f873b01c2f3c129 solaris_sparc_64_sfx.exe
    f164d31ef39ca88c608d5f131d71a070 solaris_x64_64_sfx.exe
    3ca3856469cf82d9346de71d3b5706a5 windows_x64_64.exe
    7576ad5ba6b2ac23f2e6b5208196eebe windows_x86_32.exe
  5. Without a valid GAMS license the system will operate as a free demo system:
    • Model limits:
      • Number of constraints and variables: 300
      • Number of nonzero elements: 2000 (of which 1000 nonlinear)
      • Number of discrete variables: 50 (including semi continuous, semi integer and member of SOS-Sets)
    • Additional Global solver limits: Number of constraints and variables: 10
    • The GAMS log will indicate that your system runs in demo mode:

      GAMS 24.7.3   Copyright (C) 1987-2016 GAMS Development. All rights reserved
      Licensee: GAMS Development Corporation, Washington, DC   G871201/0000CA-ANY
                Free Demo,  202-342-0180,,   DC0000
    • GAMS will terminate with a licensing error if you hit one of the limits above:
      *** Status: Terminated due to a licensing error
      ***         Inspect listing file for more information
  6. To deliver GAMS with the best performance we are using the Amazon CloudFront web service, a global network of edge locations for content delivery.