AIC values for a OGPR model trained in the Regression Learner App

Hello!

I'd like to establish an objective criteria for selecting a model trained using the Regression Learner app, especially when several models exhibit similar R2 and RMSE values in the prediction. Could you help me, please, to write a code to estimate the AIC from an exported model?

I'm attaching two exported models for comparison.

I'd really appreciate your help with this!

best,

Laura