Softbank SuperPOD is a large GPU cluster operated by Softbank, located in Japan, in the private sector. It came online around September 2023. At that moment it ranked number 42 among known clusters.
It is built on 2,048 NVIDIA A100. That amounts to about 646 H100e of AI compute. The cluster draws roughly 1.7 MW. Its hardware is estimated at $40M.
Epoch AI rates the certainty of this record as confirmed. Estimated "over 2,000" as 2,048