Igor Babuschkin's River AI raises $1.1 billion for customer-owned models

General Catalyst and AMP PBC led the combined seed and Series A, with Nvidia and AMD backing an open-weight training stack.

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Primary source: Reuters

Why it matters

River's unusually large early financing backs a shift from renting general AI APIs toward training models that enterprises can own, tune and deploy around proprietary work.

Illustration of Igor Babuschkin's River AI modular open-weight model shown as a constructible system with detachable components representing customer-owned models.

Igor Babuschkin (@ibab), the former xAI co-founder who helped build AlphaStar at Google DeepMind, has raised $1.1 billion for River AI, two months after publicly introducing River.…

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