Callosum raises $100M seed for AI model-chip routing
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- Callosum raised a $100M seed round led by Atomico and the UK Sovereign AI Fund, with additional unnamed investors also participating, per Bloomberg.
- The London-based company's software matches specific artificial intelligence tasks with different AI models and chips, functioning as a routing layer between workloads and compute.
Why it matters: A $100M seed round is an unusually large sum for an early-stage startup, underscoring investor conviction in infrastructure software that optimizes how AI workloads map to chips. The UK Sovereign AI Fund's participation signals direct government backing for a domestic company tackling model-chip allocation, a layer that has become strategically critical amid ongoing compute bottlenecks.
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