Igor Babuschkin, a cofounder of xAI, is reportedly in talks to raise up to $1 billion for his new AI research startup, River AI. The company, incorporated in April 2026, is seeking a valuation of up to $5 billion and aims to focus on long-term, cutting-edge AI research. General Catalyst is reportedly in discussions to lead the funding round, with Babuschkin also contributing personal funds. AI
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IMPACT This funding round for River AI signals continued massive investment in foundational AI research startups.
RANK_REASON Significant funding round for a new AI startup founded by a notable researcher. [lever_c_demoted from significant: ic=1 ai=0.7]
