Across the entire set of molecules, we considered the time to generate coordinates and heavy-atom root mean square deviation (RMSD) between the generated and reference molecule. As the RMSD is highly susceptible to differences in conformers, we also considered the mean bond length error, mean bond angle error, and dihedral angle error. Finally, we tested the "success" of retaining the stereochemistry of the original SMILES. All experiments are conducted as single-core processes on a Thinkpad X1 Carbon laptop with Core i7-7500U (2.70GHz), 16GB RAM and Ubuntu 16.04 running on Docker (18.09.1).