Free Software Downloads

The C source code for single-threaded Linux versions of our software is now available under the GNU General Public License. (These are the full versions, not the limited demonstration versions available below.) The source code is supplied in the hope that it will be useful, but without any warranty of any kind; without even the implied warranty of merchantability or fitness for a particular purpose. See the GNU General Public License for further details.

C5.0 Release 2.07 GPL Edition
Cubist Release 2.07 GPL Edition
GritBot Release 2.01 GPL Edition

Please note: we do not provide support for GPL releases.


Scaled-down versions of See5/C5.0 and Cubist are available without charge, subject to your consent to the Licence Agreement. These demonstration versions are limited to small datasets (up to 400 cases for See5/C5.0 and up to 200 cases for Cubist) but otherwise incorporate almost all the features of the tools.

To download, click on the appropriate tool and operating system in the following table:

See5/C5.0 Cubist
Windows Xp/Vista/7/8 Windows Xp/Vista/7/8
Linux (32-bit) Linux (32-bit)


RuleQuest also provides free C source code to read and interpret the classifiers and models produced by See5/C5.0 and Cubist. Once you have run See5/C5.0 or Cubist on your data, you can then incorporate the resulting classifiers and models into other programs.

The source code is distributed "as is" and without warranty of any kind -- any use is at your own risk! To obtain a copy, click on the appropriate tool and format in the following table:

See5/C5.0 Cubist
zip archive zip archive
gzipped tar file gzipped tar file

© RULEQUEST RESEARCH 2013 Last updated July 2013


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