River AI
River AI

River AI

Personalized AI startup that helps enterprises customize open-source artificial intelligence models.

Active18San Francisco, United States

About

River AI is building personal AI owned and shaped by individuals, envisioning a future where AI works entirely for you and aligns with your values. Their core offering includes a platform for creating highly personalized, continually learning AI models through advances in interfaces, models, algorithms, infrastructure, and personal hardware. River AI also offers an API that allows developers to train and own custom AI models using LoRA-based fine-tuning and reinforcement learning on open-source models.

Key facts

At-a-glance profile data

Website
river.ai
Headquarters
San Francisco, United States
Employees
18
Total funding
$1.1B (Seed and Series A)
Business model
B2B

Funding rounds

Funding rounds raised by River AI
DateRoundAmountLead investors
11 Aug 2026Seed and Series A$1.1BGeneral Catalyst, AMP PBC

Tech stack

Detected on river.ai, last scanned 24 Sept 2026. Run your own scan

Analytics
Google Analytics 4, Segment
CDN
Cloudflare
Email provider
Google Workspace
Status page
BetterStack
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Frequently asked

What is River AI's Effective Domain Rating?

StartupHub's Effective Domain Rating for River AI is 17 out of 100, measuring real cross-surface visibility in search engines and AI answers rather than claimed link authority.

Is River AI trustworthy and reputable?

StartupHub's Data Trust & Reputation score for River AI is 26 out of 100, based on site security posture and privacy practices.

How much funding has River AI raised?

River AI has raised a total of $1.1B in funding. The most recent round on record is Seed and Series A.

How many employees does River AI have?

River AI has approximately 18 people on record.