AI Chip Orchestration Startup Callosum Secures $10.25 Million in Funding Led by Plural

London-based startup Callosum has announced the successful completion of a $10.25 million funding round, with Plural leading the investment. ARIA provided research and development funding for the company.

Founded by two Cambridge neuroscience PhDs, Callosum develops software designed to orchestrate AI workloads across a diverse range of chips, including those from Nvidia, AMD, AWS Trainium/Inferentia, Cerebras, and SambaNova. The platform emphasizes multi-cloud and multi-chip synergy.

Callosum claims its system offers significant performance and cost advantages for complex enterprise tasks, reporting approximately double the accuracy, seven times the speed, and a four-fold reduction in costs compared to single-hardware solutions. The company is actively collaborating with data center infrastructure providers on advancements such as novel photonic interconnects. Future expansion plans include entering the U.S. market and establishing some of its own hardware infrastructure.

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