Osmosis

Osmosis is a forward-deployed reinforcement learning platform that helps companies train task-specific AI models that outperform foundation models at a fraction of the cost.

Latest funding

$6.3M Seed · October 15, 2025

Led by CRV · Source: x.com

Latest round on record: Series A, July 2026, amount undisclosed.

Total raised: $6.8M* across 2 sourced rounds

All 3 rounds ↓

Website: osmosis.ai.

Categories: Foundation models and research Developer tools and cloud Education.

Sectors: B2B, Artificial Intelligence, Machine Learning, Reinforcement Learning, Infrastructure.

Stage: Series A.

Based in: San Francisco, United States.

Total raised: $6.8M* in 2 sourced rounds.

Last round: Jul 13, 2026 · 122 days ago.

Team: 6 people on the team page.

On Recent Funding since: Sep 28, 2026.

Signals

Website registeredDec 16, 2017 (8 years old)

Funding rounds

July 13, 2026
Series A · amount undisclosed
Source: fundraisingfox.com
October 15, 2025
Seed · $6.3M
CCRV (lead)
Source: x.com
December 16, 2017
Website created
Date unknown
Round · $500K*
YY Combinator
Source: ycombinator.com

Team

KZ
Kasey Z. CEO

LinkedIn · source: foundertrace.com

Investors

Companies like Osmosis

WWordware$30M Seed · Nov 2024
NNorthslope$22M Series A · Jan 2026
NNeuracore$3M Pre Seed · Nov 2025
GGood Start Labs$3.6M Seed · Oct 2025
OOoak DataPre Seed · Jun 2026
NNums AISeed · Nov 2026

Other companies backed by CRV

FFlapping Airplanes$1B Series A · Oct 2026
MMelius$25M Series A · Oct 2026
JJeeves$110M Series B+ · Sep 2026
RRaindrop$35M Series A · Sep 2026
AArchy$50M Series B+ · Sep 2026
CCradlewise$12M Series A · Sep 2026

CRV portfolio →

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/osmosis (get a free API key).