JUPITER Exascale AI Data Center

JUPITER is Europe’s first exascale-class supercomputer, housed in a modular liquid-cooled data center at Forschungszentrum Jülich. Built on Eviden BullSequana XH3000 racks populated with 24,000 NVIDIA GH200 Grace-Hopper Superchips, the system will deliver around 1 exaflop of double-precision compute and roughly 80 exaflops of AI throughput once fully scaled. Its hot-water cooling loops and high-efficiency design helped the initial JEDI module top the Green500 ranking. JUPITER underpins European digital twin Earth projects, large language model training, and next-generation scientific simulations while Germany expands grid capacity to support the 10+ megawatt installation.