Spanish deeptech company that shrinks large language models wants investors to bet that efficiency, rather than sheer scale, is where the next stretch of AI money gets made.

Multiverse Computing, based in San Sebastián in Spain’s Basque Country, has opened a Series C round targeting up to $570m (€500m), the company said on July 27.

The raise would value the startup at roughly $1.7bn (€1.5bn) before the new money arrives, which the company put at about five times its previous valuation.

The pitch rests on CompactifAI, a tool Multiverse says can compress a large language model by up to 95% with what it calls immaterial accuracy loss. It borrows tensor networks from quantum physics to strip redundancy out of a model, cutting the memory, cost, and energy each query burns.

The 💜 of EU techThe latest rumblings from the EU tech scene, a story from our wise ol' founder Boris, and some questionable AI art. It's free, every week, in your inbox. Sign up now!The technique sits inside a broader compression race that has pulled in far larger players.