River AI (xAI co-founder) raises $1.1B from NVIDIA, AMD, and Y Combinator

💰 River AI raises $1.1B

xAI co-founder Igor Babushkin raised $1.1B in Seed + Series A rounds. Investors — General Catalyst, NVIDIA, AMD Ventures, Y Combinator, Temasek.

🌍 The platform supports LoRA fine-tuning and RL for open models from 35B to 1T parameters. RL tasks are completed in 15–20 minutes, 2–4 times cheaper than closed solutions.

👤 The API allows any developer to create their own AI model based on open models without a team of infrastructure engineers. Payment is per token, not for GPU idle time.

Source: https://techcrunch.com/2026/08/11/general-catalyst-leads-1-1b-round-into-2-month-old-river-ai/