For properties of COFs, PPNs, and zeolites, PMTransformer exhibited the lowest MAEs across all properties except for CH4 uptake at 65 bar in COFs, in which the MOFTransformer had the lowest MAE, as shown in Table . Our findings suggest that pre-training with a large set of diverse porous materials, as opposed to pre-training with MOFs alone, plays an important role in improving performance in predicting various properties of porous materials.