Europe · stealth · AI
Igor Babuschkin left xAI in August 2025 and now raises up to $1B for River AI at a $5B valuation on an April 2026 Nevada filing that lists no product or hires.
Igor Babuschkin founded River AI in April 2026 to build autonomous self-improving research systems. He seeks up to $1B at a $5B valuation after co-founding xAI and contributing to its Grok model.