Published: August 21, 2026 at 8:25 am
Callosum, an AI infrastructure company founded by Cambridge scientists Danyal Akarca and Jascha Achterberg, has raised $100 million (£73m) in seed financing.
One of the largest seed rounds ever raised in Europe and aims to rewrite how AI is computed.
Callosum says it has built a software layer that co-optimises AI models and chips, orchestrating each workload across the hardware best suited to run it – removing reliance on any single frontier model or chip.
The founders met while earning their PhDs at Cambridge, where their research examined how the brain achieves intelligence not by replicating one type of neuron billions of times but by combining specialised circuits.
They argue AI systems will follow the same pattern: many models, interacting collectively, on diverse computing substrates.