Physics objects in CMS Run 3

In these proceedings we review the reconstruction of the physics objects used by the CMS experiment during LHC Run 3 at s = 13.6 TeV, including charged leptons, photons, jets, and missing transverse momentum. The performance of physics object reconstruction and their calibration are critical for physics analysis. In particular, the algorithms need to be resilient against the high pileup conditions in Run 3 collisions. Furthermore, transformer-based algorithms are deployed for the identification of heavy-flavor jets and boosted resonances.