Correlation between interior features for the two grid search stages. The black points are model results, and the blue shading is the models’ distribution. The left column shows accepted models predicted by NeuralCMS in the first grid search, within the DNN’s maximal absolute prediction errors on the validation dataset. In the right column are accepted models computed with CMS found in the second tighter grid search. The axes range is the initial wide search range. The range of P₁₂ and Y_proto was not reduced. The middle panels nicely reproduce previous results (Howard et al. 2023a).