In this article, the main focus will be to analyze the notion of mediation in an attempt to apply it to one of the major topics of our time: the increasing impact of AI technologies in social life. Mediation being essentially a relational concept, I will start by linking it to the relational thinking developed in sociological theory and postphenomenology. My own contribution will be to take a substantialist position and to define what I consider to be the ecstatic dimension of relationality, re-interpreted via the notion of “being-toward.” I will also draw on Sartre's socio-materialist understanding of mediation, focusing in particular on his general conceptualization of the “practico-inert field.” A metaphorological approach will be presented in the final part of the study to illustrate the relations between humans and AI technologies. Three metaphors will be used to explore the meaning of algorithmic mediations: “vampire objects,” “bewitched quantities,” and “frozen voices.” These metaphors will be interpreted in light of empirical phenomena: (a) algorithmically generated “synthetic data,” (b) “high-frequency trading,” and (c) AI recruitment chatbots in hiring.