Callosum is an AI infrastructure company building systems-level software that makes diverse chip architectures work together. Founded by Cambridge scientists Danyal Akarca and Jascha Achterberg, the company's technology unlocks new AI systems through next-generation infrastructure, allowing the usage of any combination of chips. This delivers superior performance, lower costs and reduced dependence on any single hardware provider. Callosum is backed by Plural and is based in London.
Callosum: Venture Capital Funding History
Callosum
News from Callosum
Callosum
20 Aug 2026
Callosum unlocks a £75m seed round led by Atomico to optimise AI workloads across the best models and chips
Callosum builds a software layer that co-optimises AI models and chips, decomposing each workload and directing every task to the model and processor best suited to execute it. Its platform serves enterprises, next-generation clouds and hyperscalers, and sovereign compute programmes that need frontier AI capability at lower cost and latency, and ships as a family of APIs so developers can adopt new AI hardware without rewriting their applications.
Callosum
26 Feb 2026
Callosum unlocks £7.5m in funding led by Plural to challenge single-chip AI systems
Callosum builds software that enables different AI models to run together across multiple types of computing chips. Its platform helps organisations combine diverse hardware to improve performance, reduce costs and solve complex real-world computing tasks.
Callosum
- AI
- London, United Kingdom
- £82.5m
- callosum.com
- Update Information
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