River AI raises $1.1B in funding round led by General Catalyst and Amp PBC

River AI, a startup barely two months old, has reportedly raised $1.1 billion in its initial funding round with backing from NVIDIA and AMD’s venture arms, alongside lead investors General Catalyst and Amp PBC. The company was incorporated in Nevada on April 20, 2026, which means it potentially secured a billion-dollar check before most startups finish picking a logo. The round values River AI at roughly $5 billion, a figure that would be eye-popping in any era but feels almost routine in a 2026 AI funding landscape that has abandoned all pretense of restraint. Who’s behind River AI The startup is led by Igor Babuschkin, whose resume reads like a greatest-hits tour of AI research labs. He previously worked at OpenAI, DeepMind, and Tesla before co-founding Elon Musk’s xAI venture. Several other ex-xAI employees round out the founding team, continuing a pattern of AI talent splintering off from established labs to launch their own shops. Babuschkin is reportedly committing up to $100 million of his own money to the round. River AI’s stated mission centers on building personal AI agents and APIs that learn and adapt based on individual user preferences. The key differentiator, at leas...