Subsequently, we aimed to apply our trained models to an experimental dataset of rate constants/activation energies for 45 HAT reactions from C(sp 3 )-H bonds by cumyloxyl radical (CumO • ), compiled by Bietti et al. Finally, we also considered a small dataset of experimentally reported selectivities for 6 hydrocarbons by CH 3 O • determined by Zuo et al.. More specifically, we aimed to reproduce the observed selectivities by inferring the relative barrier heights associated with individual carbon attack positions (15 in total).