Radio luminosity function at 1.4 GHz for the low (left), intermediate (middle) and high (right) redshift bins. We also report the luminosity function of Condon et al. (2002) in the local Universe for star-forming and AGN population as open squares and stars, respectively. The SPRITZ predictions for radio-loud AGN are shown in gray diamonds (Bisigello et al. 2021), as well as the 1.4 GHz luminosity function from the radio AGN survey in the VLA-COSMOS field (Smolčić et al. 2017, open green squares) for each redshift bin.