River AI — Intelligence that flows with you

Performance

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Scene

TOD 08:30 TIME SPD 1.00x WATER DOT 186 AUR DOT 186 CLD DOT 226 SCROLL 1.18 POV HZN 0.570 CANYON 0.50 SUN 1.25 TWILIGHT TW RAD 0.18 TW ELY 0.90 TW ELX 0.48 TW ZONE 0.10 AUR FILL 1.00 TOP GAIN 0.50 AUR HGT 2.75 ORIG Y -0.05 ORIG TPR 0.50 FIL DENS 1.75 FIL W 2.00 FIL H 2.00 FIL INT 2.25 FIL TRK FLOW 0.70 FOAM 1.69

Mission

At River, our mission is to create personal AI
owned and shaped by each individual.

Today's most powerful AIs are controlled by a handful of large corporations. They are designed to keep you hooked while automating your livelihood. As more meaningful work is handed to machines, we need an answer for how the rest of humanity can flourish.

We imagine a future where your AI works entirely for you and deeply aligns with your values. Compared to the corporate chatbots of today, it will feel completely different: responsible, curious, and truly yours. Most importantly, you'll own everything: the hardware it runs on, the data it learns from, and the intelligence itself.

To achieve our mission, we are rewriting the entire stack from scratch:

Interfaces The next generation of user interfaces that make interacting with your AI as natural as thinking. Models & Algorithms Fundamental advances in training to create highly personalized, continually learning models. Infrastructure Infrastructure built for continual specialization at scale. Personal hardware Powerful personal hardware to run your intelligence locally.

River has the soul of a research lab and the heart of a product company. We are here to achieve the breakthroughs in hardware and deep learning that make truly personal AI possible.

Our team includes pioneers from the world's leading AI labs and technology companies with a proven track record of scaling AI organizations.

We are always looking for amazing people to join us on this journey.

API

Train models that are yours.

River runs LoRA-based fine-tuning and reinforcement learning on a variety of open-source models — from small 35B to large 1T parameters. Teach a model new skills and turn it into a cost-efficient agent for your own tasks, all through one small Python client. Bring your data, shape the weights, and own the intelligence you create.

LoRA fine-tuning Reinforcement learning Open models Pay per token

Own your intelligence

Train models that are yours.