To further examine their accuracy and fidelity, the GAV performance with the new groups was evaluated for four different classes of molecules within the enum-halocarb4 dataset: noncyclic closed-shell, noncyclic radical, cyclic closed-shell, and cyclic radical. Figure shows the GAV performance for each molecule class. For noncyclic HHCs, which are a majority of the dataset (∼ 88%), the GAVs are accurate at estimating thermochemical parameters for both closed-shell molecules and radicals. For non-cyclic closed-shell molecules, the MAD for ∆ f H • 298K is 2.07 kcal/mol which is slightly less than the 2.13 kcal/mol MAD for noncyclic radicals. However, for cyclic species, the GAVs are significantly more accurate for cyclic closed-shell species (MAD = 1.56 kcal/mol) than for cyclic radicals (MAD = 3.75 kcal/mol).