Microsoft Ares/Maia is a large GPU cluster operated by Microsoft, located in the United States, in the private sector. It came online around November 2023. At that moment it ranked number 51 among known clusters.
It is built on 2,048 Maia 100 (M100). That amounts to about 828 H100e of AI compute. The cluster draws roughly 2.12 MW.
Epoch AI rates the certainty of this record as likely.