Announcing Atomico’s lead in Callosum's $100M seed round, one of the largest ever raised in Europe, alongside Plural, DCVC, UK Sovereign AI and others.

The problem Callosum solves is the defining constraint of the AI economy. AI native companies routinely spend half or more of their revenue on inference; meanwhile the chip world is fragmenting fast. The insight is that the goal is not simply cheaper tokens but more useful intelligence from every unit of compute, directing each piece of work to wherever it produces the most value. That reframing is what changes the unit economics of AI for everyone building on it.

Read the piece here.