Top panels, leftmost panel: age comparison of Casamiquela et al. (2024)’s 35 K sub-giant sample age estimates and results from the NN trained on BaSTI. Top panels, other panels: age estimates from the NN trained on BaSTI compared to those from NNs trained on (from left to right) MIST, PARSEC, Dartmouth, and SYCLIST evolutionary grids. Running medians are shown with white lines, as well as a one-to-one dashed black line to guide the eye. Bottom panels: running median of the difference Δτ between the age estimates τ of C24 and our BaSTI NN (leftmost panel), between our BaSTI NN and other NNs (other panels) in solid lines, and the associated standard deviations in shaded areas.