River AI Raises $1.1B to Build Personal AI Stack, Launches Training API
ibab · x · 2026-08-11
River AI announced a $1.1B funding round led by General Catalyst and AMP, with strategic investment from NVIDIA and AMD, and participation from Y Combinator and Temasek. The company aims to build AI that users own and shape, with its first product, the River API, enabling custom agents and LLMs on open-weight models via LoRA fine-tuning and RL, supporting models from 35B to 1T parameters.
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