Recently, an energy refined version of the QM9 dataset (QM9 G4M P 2 ) was published, which used the composite G4MP2 method to provide more accurate energy values. The use of the G4MP2 method to calculate molecular energies in QM9 G4M P 2 also ensures consistency in terms of geometries with the previous QM9 dataset since, in both datasets, the geometry optimization method is B3LYP/6-31G(2df,p). As the QM9 G4M P 2 dataset provides superior accuracy data to molecular energy, we assumed the ground truth of our model as the energies from the G4MP2 method.