- Callosum has raised $100 million in seed financing, making it one of the largest rounds in Europe, with participation from Atomico, Plural, DCVC, and the UK's Sovereign AI fund.
- The UK's Sovereign AI fund made a significant investment in this financing round, which totals £500 million ($677 million).
- Callosum has launched its first product, a family of APIs designed for heterogeneous intelligence, which is now live.
- Callosum was founded by Danyal Akarca and Jascha Achterberg, who met during their PhDs at Cambridge.
- The startup aims to match AI tasks with the best-suited models and chips, addressing the defining constraint of the AI economy.
Callosum, a pioneering AI startup, has raised $100 million in seed funding, marking one of the largest rounds in Europe. The funding, led by Atomico and supported by the UK Sovereign AI fund, aims to revolutionize how AI tasks are matched to chips.1
The company’s innovative software addresses a critical issue in the AI economy: the shift from model training to inference. As companies increasingly allocate significant portions of their revenue—often over 50%—to inference, Callosum’s technology promises to optimize this process by routing workloads to the most suitable hardware.
“The problem Callosum solves is the defining constraint of the AI economy,” the company stated, emphasizing the need for efficiency in a landscape where custom silicon and specialized processors are becoming the norm.5
Callosum’s platform has demonstrated impressive results, achieving four times faster processing speeds and reducing compute costs by 70% in financial services applications, compared to traditional models. This performance boost is crucial as the chip industry rapidly evolves, with a diverse array of processors now available.
The startup, founded by Danyal Akarca and Jascha Achterberg, is also launching a suite of APIs that allow developers to leverage advanced AI hardware without extensive modifications to their applications. With a team comprising experts from prestigious institutions like Cambridge and DeepMind, Callosum is poised to lead the charge in AI optimization.4
“The round, one of the largest seed financings in Europe, was led by Atomico with participation from Plural, DCVC, and the UK's £500 million Sovereign AI fund. Callosum's platform, tested with Cerebras, ran agentic workloads four times faster and cut compute costs by 70%.”
/Computer%20memory%20closeup%20by%20Nor%20Gal%20via%20Shutterstock.jpg)
