Wroclaw Centre for Networking and Supercomputing Lem is a large GPU cluster operated by Wroclaw Tech (Wrocław University of Science and Technology), located in Poland, in the public sector. It came online around June 2024. At that moment it ranked number 143 among known clusters.
It is built on 304 NVIDIA H100 SXM5 80GB. That amounts to about 304 H100e of AI compute. The cluster draws roughly 0.43 MW. Its hardware is estimated at $11M.
Epoch AI rates the certainty of this record as confirmed.