River AI secures $1.1 billion in funding led by General Catalyst

Aug 11, 2026

AI Summary

River AI, an AI startup founded by Igor Babuschkin, has raised $1.1 billion in a seed/Series A funding round led by General Catalyst and AMP PBC, with contributions from Nvidia and others. The company aims to develop personal AI assistants that can be trained by users, diverging from traditional AI models focused on replacing human workers.

River AI was founded by Igor Babuschkin, a co-founder of xAI, and emerged from stealth in June 2023.
The startup raised $1.1 billion in funding, with General Catalyst and AMP PBC leading the round, and participation from Nvidia, AMD Ventures, Y Combinator, and Temasek.
Babuschkin's vision is to reinvent AI training, creating agents that serve as personal assistants rather than replacements for human workers.
River AI offers an API that allows developers to utilize reinforcement learning and low-rank adaptation for model fine-tuning, aiming to provide a solution to prompt engineering.
The company claims its technology can enable enterprises to conduct complex reinforcement learning tasks quickly and cost-effectively without needing extensive infrastructure.
River AI's approach aligns with a growing demand for enterprises to control their AI models, particularly with the rise of personal, locally-running AI agents.

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River AI secures $1.1 billion in funding led by General Catalyst

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