Direct 12 + log(O/H) measured in galaxies at z > 1.3 are plotted against T_e[O II] or T_e[N II] when available (left), T_e[S III] (middle), and T_e[O III] (right). The shapes represent whether the T_e in each panel are directly measured or inferred from a T_e scaling relation: yellow circles are direct T_e measurements from CECILIA (yellow squares represent direct T_e[N II]); red circles are CECILIA galaxies with inferred T_e; purple and white triangles are literature SFGs where the specific T_e has been directly measured and inferred, respectively. The expected anticorrelation between O/H and T_e is observed, and the CECILIA galaxies with low direct T_e[O II] and T_e[S III] extend the trend to the highest O/H. Above the right panel, we provide the auroral-to-nebular [O III] line ratio required to produce the direct or inferred T_e. Few high-z galaxies have [O III] auroral-to-nebular line ratios ≤0.007 predicted in the most metal-rich CECILIA galaxies.