COPASI: Biochemical System Simulator

COPASI is a software application for simulation and analysis of biochemical networks and their dynamics.

COPASI is a stand-alone program that supports models in the SBML standard and can simulate their behavior using ODEs or Gillespie's stochastic simulation algorithm; arbitrary discrete events can be included in such simulations. A list of the many features can be found here.

Most recent News

COPASI 4.34 (Build 251) Released

Stefan Hoops: 2021-08-12 01:00:00 +0000

The COPASI team announces the immediate availability of the stable release COPASI 4.34 (Build 251).

A new release of COPASI has been made available. Please visit our free download page to retrieve this latest development release. Please note this version is released under the Artistic License 2.0, which is an OSI approved license. This license allows non-commercial and commercial use free of charge. This is urgent bug fix release some issue in COPASI 4.33 (Build 246):

Release Date: August 12, 2021

More information can be found in the changelog.

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COPASI 4.33 (Build 246) Released

Stefan Hoops: 2021-06-17 01:00:00 +0000

The COPASI team announces the immediate availability of the stable release COPASI 4.33 (Build 246).

A new release of COPASI has been made available. Please visit our free download page to retrieve this latest development release. Please note this version is released under the Artistic License 2.0, which is an OSI approved license. This license allows non-commercial and commercial use free of charge. This is an urgent bug fix release resolving an issue in COPASI 4.32 (Build 245):

Bug Fixes

  • Simulation Engine
    • Fixed problem for models with species of type ODE, for which no simulation or analysis was possible.

Release Date: June 17, 2021

More information can be found in the changelog.

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COPASI 4.32 (Build 245) Released

Stefan Hoops: 2021-06-16 01:00:00 +0000

The COPASI team announces the immediate availability of the stable release COPASI 4.32 (Build 245).

A new release of COPASI has been made available. Please visit our free download page to retrieve this latest development release. Please note this version is released under the Artistic License 2.0, which is an OSI approved license. This license allows non-commercial and commercial use free of charge. This is primarily a bug fix release but has a few new features:

read more

COPASI 4.31 (Build 243) Released

Stefan Hoops: 2021-05-10 01:00:00 +0000

The COPASI team announces the immediate availability of the stable release COPASI 4.31 (Build 243).

A new release of COPASI has been made available. Please visit our free download page to retrieve this latest development release. Please note this version is released under the Artistic License 2.0, which is an OSI approved license. This license allows non-commercial and commercial use free of charge. This is primarily a bug fix release but has a few new features:

read more

COPASI 4.30 (Build 240) Released

Stefan Hoops: 2021-02-24 01:00:00 +0000

The COPASI team announces the immediate availability of the stable release COPASI 4.30 (Build 240).

A new release of COPASI has been made available. Please visit our free download page to retrieve this latest development release. Please note this version is released under the Artistic License 2.0, which is an OSI approved license. This license allows non-commercial and commercial use free of charge. This release has several new features:

read more
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