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# Callosum raises $100M seed round to route AI workloads across chips and models
- URL: https://www.enterprisey.com/callosum-raises-100m-seed-round-to-route-ai-workloads-across-chips-and-models/
- Published: 2026-08-20T21:45:00.000Z
- Updated: 2026-10-26T04:17:30.000Z
- Description: UK startup Callosum raised a $100M seed round led by Atomico for software that sends each AI workload to a suitable model and chip. The UK's Sovereign AI fund invested alongside Plural and DCVC.
- Author: Enterprisey Admin
- Tags: News, Funding

UK startup Callosum raised a $100M seed round led by Atomico for software that sends each AI workload to a suitable model and chip. The UK's Sovereign AI fund invested alongside Plural and DCVC. ([Bloomberg (via BGOV)](https://news.bgov.com/artificial-intelligence/startup-that-matches-ai-tasks-to-chips-raises-100-million?ref=enterprisey.com); [Tech.eu](https://tech.eu/2026/08/20/callosum-raises-100m-seed-round/?ref=enterprisey.com))

Callosum came out of stealth in February 2026 with $10.25M. It has a partnership with Cerebras to offer fast inference on its platform. It did not disclose a valuation. ([Bloomberg (via BGOV)](https://news.bgov.com/artificial-intelligence/startup-that-matches-ai-tasks-to-chips-raises-100-million?ref=enterprisey.com); [Tech.eu](https://tech.eu/2026/08/20/callosum-raises-100m-seed-round/?ref=enterprisey.com))