Tech Funding News Sofia Chesnokova ● Covered by 3 sources
Callosum raised $100 million in seed funding led by Atomico, following a $10.25 million pre-seed earlier in 2026.
Callosum, a London-based startup, has raised a $100 million seed round, one of the largest ever in Europe,…
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4 September 2026
Nvidia’s $12.93 billion acquisition of Hugging Face is the day’s loudest signal that “open models” are becoming infrastructure. The deal, completed September 2, moves the French-founded platform entirely into US ownership, just as Hugging Face itself reports a library of more than 3 million models and roughly 18 million developers. The question now isn’t whether open-weight tooling works, but who gets paid once it turns into enterprise operations—safety evaluations, deployment pipelines, and inference in production. Nvidia’s play is to sit closer to the workflow than a box of GPUs ever could, and it pairs neatly with new Personal AI Router (PAIR), which aims to spread agentic sub-tasks across your home machines by clustering and redistributing work when nodes drop.
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