From left: Jascha Achterberg and Danyal Akarca. Image: Linda Brownlee.
The company aims to lower AI costs by attaching each task to the model and hardware that best suits it.
Callosum, a UK-founded AI start-up that develops software to match specific AI tasks with the least expensive and most suitable models and chips, has raised $100m in early seed feeding.
The round was backed significantly by the UK’s Sovereign AI Fund and led by venture capital firm Atomico with additional participation from investors Plural and DCVC. The organisation also has a partnership with chipmaker Cerebras Systems and has deals with Rebellions Inc and Axelera AI.
Established in 2025, by two Cambridge University neuroscientists, Danyal Akarca who is the CEO and CTO Jascha Achterberg, Callosum software can direct specific AI tasks towards the models and chips best suited to the activity and financial requirements, as a means of showing that not every company requires high-end, powerful graphic processors or AI strategies.







