OpenMM vs GROMACS: Python Flexibility vs C++ Speed

By BioDockify Computational Research Team · August 9, 2026 · Comparison

Technical comparison of OpenMM and GROMACS molecular dynamics engines. Python API vs C++ performance, custom force fields, ML integration, and when to choose each.

Read the complete article with tables, code and references on BioDockify.

Key References

• Eastman, P. et al. OpenMM 8: Molecular Dynamics Simulation with Machine Learning Potentials. J. Chem. Theory Comput. 20, 2 (2024).
• Abraham, M.J. et al. GROMACS. SoftwareX 1-2, 19-25 (2015).

Scope & Limitations

OpenMM is slower than GROMACS for standard MD GROMACS has no Python API ML potentials are still experimental