XAI co-founder's startup River AI raises $1.1 billion to expand custom AI tools


A message reading "AI artificial intelligence", a keyboard, and robot hands are seen in this illustration taken January 27, 2025. REUTERS/Dado Ruvic/Illustration

Aug 11 (Reuters) - Startup ⁠River AI, founded by xAI co-founder Igor ⁠Babuschkin, said on Tuesday it has raised $1.1 billion, ‌looking to expand tools that help clients build personalized AI models on their own data.

The fundraise was led by ​General Catalyst and AMP PBC, with ⁠strategic investment from ⁠Nvidia and AMD Ventures. Additional investors included Y Combinator ⁠and ‌Temasek.

• River AI said it is betting that enterprise AI will shift from ⁠companies using general-purpose models from large labs ​to customizing and ‌owning their own models, using open-weight models.

• ⁠The company ​added that its API allows enterprises to perform complex reinforcement-learning training runs in 15 to 20 minutes ⁠without an infrastructure team and is ​two to four times more cost-effective than closed-source alternatives.

• "AI should be open, freely available, and affordable. It ⁠should feel like it is working for the person using it, not the lab that trained it," CEO Igor Babuschkin said.

• Babuschkin previously worked ​on generative-modeling and reinforcement-learning at ⁠Google DeepMind and led large-scale training at OpenAI before ​co-founding xAI.

• River AI declined ‌to comment on how much ​the funding valued it at.

(Reporting by Prathik Jayaprakash in Bengaluru; Editing by Joyjeet Das)

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