Neoclouds, including CoreWeave and Nebius, rent Nvidia GPUs to AI labs, according to the supplied material. Several of these companies started out mining crypto.
The description presents the neocloud model as one in which Nvidia GPUs are rented out to AI labs, and it identifies CoreWeave and Nebius as examples of such providers. It also notes that several neocloud companies began in cryptocurrency mining before moving into this business.