We provide a brief summary of the parallel session I, "Oscillation Parameters: Present" at the Neutrino Oscillation Workshop 2022. The topics discussed in this session are the current status of neutrino mass-mixing parameters in the three neutrino framework, both from the experimental and the model building point of view, as well as the recent constraints on the existence of a light sterile neutrino. Special importance has been given to the role of systematics and of new tools adopted in data analysis, such as machine learning.