High-energy cutoff vs. intrinsic luminosity for local Seyferts measured with NuSTAR (gray dots, from the updated sample of Bertola et al. 2022), and the binned results from the BAT-selected sample (magenta downward pointing triangles, Ricci et al. 2018). Green data points show results for luminous quasars at z ≳ 0.5: pentagon from Kammoun et al. (2017); squares Lanzuisi et al. (2019); star Bertola et al. (2022); plus Marinucci et al. (2022); right-ward triangle Kammoun et al. (2023). PDS456 (Reeves et al. 2021) is shown in cyan and IRASF11119 in red. The different intrinsic luminosities obtained from the XSTAR and DISK-WIND fits are shown by the vertical error bar. The yellow/orange areas show the runaway pair-production forbidden region (Fabian et al. 2015; Lanzuisi et al. 2019) for different geometries and BH masses.