Notably, failure occurred in only 4% of cases for "CIF parser, code+CIF" as the CIF parser does not use the space group, thus requiring fewer crystallography rules. Thus, the best-performing model and generation method is "API, code". We also compared the original and generated structures using two continuous single-mode metrics; see SI †. We compared the structures by volume and composition. The same trend is preserved: "API, code" results display smaller distances for more structures, i.e., better generation quality, than the other two generation modes.