Originally published on AI Tech Connect.
What happened on 20 August The round. London-based Callosum announced a $100m seed. Atomico led, with participation from Plural and DCVC, and the UK Sovereign AI Fund alongside them. One outlet reported the figure in euros at approximately EUR 85.4m — the same money converted, not a separate raise. The state showed up. This is the first disclosed investment from the British government's £500 million Sovereign AI Fund. Coverage characterised the round as one of the largest seeds ever raised by a UK startup; treat that as a reported characterisation, not a verified league table. The company. Founded in 2024 by Cambridge PhD graduates Danyal Akarca and Jascha Achterberg. Its platform routes workloads across different AI models and hardware providers, rather than tying a workload to a single…
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