Submer: The Barcelona-Born Immersion Cooling Powering AGI Supercomputers
Training and running frontier AI models generates thermal densities that shatter the physical limits of traditional air cooling. Submer, founded in Barcelona by Daniel Pope and Pol Valls, submerges servers in biodegradable dielectric fluids, achieving a record-breaking PUE of 1.03. We break down its technology, funding rounds, and why it is an indispensable physical pillar in the race toward AGI.