London-based Callosum has raised $10.25M to build multi-chip AI orchestration software that challeng...
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The article introduces a new player in the AI infrastructure segment focused on heterogeneous compute orchestration, signaling a structural shift toward reducing GPU vendor lock-in via multi-chip optimization.
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London-based Callosum has raised $10.25M to build multi-chip AI orchestration software that challenges Nvidia's 85% dominance in AI compute. Backed by Plural and the UK's ARIA, the Cambridge-founded startup enables enterprises to run AI workloads across diverse accelerator chips, claiming up to 7x speed improvements and 4x cost reductions. With XPUs projected to grow 22% in 2026 and AI infrastructure spending reaching $690B, heterogeneous compute orchestration could become essential for reducing vendor lock-in and optimizing costs. This reflects a broader shift toward infrastructure diversification as governments and investors seek alternatives to monolithic GPU ecosystems.
