Table summarizes the accuracy of different functionals for CEBEs in the CORE65 test set as computed using ∆SCF, STM, GSTM methods. (The ∆SCF errors are also summarized in Fig. .) For GSTM, we consider the F[0; 3] + F[1; 3] (n = 3) method in Table . This requires four different SCF calculations and was considered also in Ref. 59. It has a leading error of O(E /54) that is lower, formally speaking, than any of the Slater-type methods that are listed in Table and allows us to test the limits of the GSTM approach. Detailed results for the entire CORE65 data set are supplied in the Supplementary Material (Tables S3-S5) and will be summarized here in terms of MAEs.