Abstract: Autoencoder circuitry for generating a compact macromodel of an interconnect system is provided. The autoencoder circuitry may include an encoder portion having a reduced model generator configured to receive an original complex macromodel and to output a corresponding latent space representation. The autoencoder circuitry may further include a decoder portion having a complex model reconstruction generator configured to receive the latent space representation and to output a corresponding reconstructed output macromodel. The autoencoder circuitry may also include associated control circuitry for performing clustering and training operations to ensure that the reconstructed output macromodel converges with the original complex macromodel. Once training is complete, the latent space or the compact representation may be used as the compact model for use in performing desired frequency domain or time domain analysis and simulation of the interconnect system.