# River AI Raises $1.1 Billion Two Months After Founding to Sell an Open Model Stack

General Catalyst led the round with strategic money from NVIDIA and AMD Ventures, backing a pitch that enterprises should train and keep their own weights.

- Published: 2026-08-14T06:27:18.545Z
- Canonical: https://polylog.news/ai/2026-08-14/river-ai-raises-1-1-billion-two-months-after-founding-to-sel
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Polylog editors](https://polylog.news)

River AI, founded roughly two months ago by Igor Babuschkin, a co-founder of xAI who previously worked on reinforcement learning at Google DeepMind and on large-scale training at OpenAI, raised $1.1 billion. General Catalyst and AMP PBC led…

This story is for subscribers. Read it in full at https://polylog.news/ai/2026-08-14/river-ai-raises-1-1-billion-two-months-after-founding-to-sel (subscription information: https://polylog.news/pricing).