tech
General Catalyst leads $1.1B round into 2-month-old River AI
River AI, a startup founded by xAI co-founder Igor Babuschkin, has a fascinating vision for personal agents and secured $1.1 billion out of the gate.

TL;DR
- River AI, founded by xAI co-founder Igor Babuschkin, raised $1.1 billion in seed/Series A funding.
- The funding round was led by General Catalyst and AMP PBC, with participation from Nvidia, AMD Ventures, Y Combinator, and Temasek.
- River AI aims to reinvent AI training to create personally trainable AI assistants, focusing on user ownership rather than human worker replacement.
- The company's vision involves rebuilding the entire AI stack, including training, models, product layer, and hardware.
- River AI offers an API allowing developers to fine-tune open models using reinforcement learning and low-rank adaptation, aiming to provide an alternative to prompt engineering.
- The startup promises enterprises complex reinforcement learning runs in minutes with significant cost savings compared to closed-source alternatives.
- The broader vision is for everyone to have their own AI agents trained by themselves and working on their behalf.