The catalysts explored in this report were then compared to 38 other benchmark catalysts in the literature in order to assess their performance(Figure ) . The catalysts explored in this report were compared to four families of catalysts: Non-spinel Co catalysts (marked as Others), spinel oxide catalysts, Ni-Fe catalysts and Ru/Ir-based catalysts. The ideal catalyst would be one with a lower Tafel slope and a lower overpotential than the state-of-the-art catalysts in the literature that currently exist. While Co1.7Al1.3O4 has a low overpotential at a current density of 10mA/cm 2 , its high Tafel slope compared to the benchmark catalysts examined makes it uncompetitive. The performance of the GaCo2O4 catalyst with respect to its overpotential and Tafel slope was also uncompetitive compared to the benchmark catalysts. On the other hand, Co2.5Ga0.5O4 is as competitive as some of the better benchmark materials within the Ni-Fe family of catalysts on both the overpotential and Tafel slope metrics. It has also outperformed all the Co, spinel oxide and Ru catalysts examined in this report, with respect to both its overpotential and its Tafel slope. The high performance of Co2.5Ga0.5O4 demonstrates the efficacy of this highthroughput computational workflow at discovering promising OER catalysts.