Subsequently, we asked GPT-4 to highlight factors essential for predicting the refractive index of polymers based on the theoretical formula. This yielded 14 molecular descriptors, including boiling point, enthalpy of formation, and heavy atom count, as shown in Fig. . Three significant points should be inferred from these responses. First, despite our omission in explaining explanatory parameters, GPT-4 demonstrated the ability to interpret them correctly. For instance, we did not explicitly define the abbreviation "DipoleTot," but GPT-4 replied, "Total dipole moment, directly related to polarizability." This shows that GPT-4 correctly deciphered the meaning of the abbreviation and made an accurate inference on the substantial influence of the dipole moment on polarizability, a critical factor in the Lorentz-Lorenz equation.