Own your intelligence

River is the new standard in personal intelligence

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Performance

FPS CAP40AA MODEoffSSAA ×4SSAA ×8SSAA ×9SDF 1×AUTO AAMARCH143STEP1.00R SCALE1.00REFINE14REFINE MODEbisectsecantHOISTNOISE TEXSHADOWCLOUDAUR SAMP28AUR RAYS0TEXT SUBTXT HZNTXT X-0.25TXT Y0.02TEXT RETRIGreplay

Scene

TOD08:30TIME SPD1.00xWATER DOT186AUR DOT186CLD DOT226SCROLL1.18POV HZN0.570CANYON0.50SUN1.25TWILIGHTTW RAD0.18TW ELY0.90TW ELX0.48TW ZONE0.10AUR FILL1.00TOP GAIN0.50AUR HGT2.75ORIG Y-0.05ORIG TPR0.50FIL DENS1.75FIL W2.00FIL H2.00FIL INT2.25FIL TRKscreenalongcurve-litecurveFLOW0.70FOAM1.69

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.

Sign up → Explore the API → See an example →

• LoRA fine-tuning
• Reinforcement learning
• Open models
• Pay per token

Intelligence that flows with you