Oumi
Bellevue, US · Founded 2024 · 42 employees on LinkedIn · 11 known investors
Find your way into Oumi
Sign up to see every warm intro you have to Oumi
- Paths you didn't know you had: your email and LinkedIn already hold routes to the Oumi team. We find them for you
- 2nd- and 3rd-degree connections: the friend-of-a-friend routes that take hours to manually find through your inbox or LinkedIn
- Answers now, not in days: momentum is everything in a raise. Skip asking around whether someone knows someone
Days of research, done the moment you sign in, with every route ranked by how warm it is.
Oumi is a platform for building, fine-tuning, and deploying custom specialized AI models, automating the model development lifecycle including evaluations, data generation, training, and deployment. It serves ML teams, researchers, and enterprises who want to own their model weights and data rather than rely on rented frontier models.
Also known as Oumi AI
Founders & leadership





Investors · 11
How we know: Ascend Venture Capital's portfolio page · Not right? Tell us
How we know: Mozilla Ventures's portfolio page · Not right? Tell us
How we know: Obvious Ventures's portfolio page · funding news · ascend.vc · research · ascend.vc · Not right? Tell us
How we know: plugandplaytechcenter.com · Not right? Tell us
How we know: Venrock's portfolio page · funding news · ascend.vc · research · ascend.vc · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: research · ascend.vc · Not right? Tell us
Also in the syndicate · 5
Funding
SEC filings, press & company announcements$10M disclosed across 1 of 2 rounds · 2025
- $10MSeed roundJan 2025 · 2 sources
Venrock (lead), Obvious Ventures, Plug and Play
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Company profile
researched Aug 2026Oumi is an open-source artificial intelligence company that develops a platform covering the full lifecycle of large foundation model development, including data preprocessing, pretraining, fine-tuning, evaluation, inference and deployment. The platform is designed to run in different environments, supports both open models and commercial APIs, and offers prebuilt workflows. The company's stated aim is to make frontier AI development collaborative and openly accessible, in contrast to model providers that release only open weights without training pipelines, preprocessing code or data provenance.
The company came out of stealth in January 2025 and is organized as a public benefit corporation. Its founding team consists of machine learning engineers and researchers who previously worked on generative AI products at Google (including Google Cloud generative AI, PaLM, Gemini alignment and responsible AI), Apple, Meta, Microsoft and Amazon. Alongside the core team, Oumi lists a large group of academic "founding scholars," collaborators and advisors from universities including CMU, Princeton, Stanford, MIT, Caltech, UC Berkeley, NYU, the University of Washington and the University of Oxford.
Oumi positions its work as enabling an open community to collectively match or exceed the capabilities of closed model providers, with leadership describing the goal as a "Linux moment" for AI. Its stated core values emphasize broad accessibility of AI, enterprise customer focus, collaboration, ownership and scientific rigor.
Founding story
Oumi was co-founded by CEO Manos Koukoumidis, a former senior engineering manager at Google Cloud who also worked at Meta and Microsoft and holds a Princeton PhD, together with Oussama Elachqar, a former machine learning engineer at Apple, Twitter and Microsoft, and additional co-founders drawn largely from Google's Gemini, PaLM and Cloud generative AI teams. The founders' thesis was that AI needed a "Linux moment," with an open community co-building frontier models rather than relying on closed, compute-gated providers.
Business model
Oumi provides an open-source platform for foundation model development and plans to monetize by offering open-source solutions tailored to enterprises, such as hosted versions of its training and inference workflows.
Enterprise-oriented commercial offerings layered on the open-source platform, including hosted training and inference workflows.
Traction
At the time of its seed announcement, Oumi reported partnerships with 13-15 leading AI research universities in the U.S. and U.K., engagement with 36 AI researchers, and a core team of 10. Its site lists a broad roster of academic founding scholars, collaborators and advisors.
Latest developments
Oumi's company page promotes an "Oumi Summer '26" launch, and press coverage references the launch of a commercial platform for custom AI models and the addition of an executive.
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
Positioned as an alternative to closed, proprietary foundation model providers and to partially open model releases such as DeepSeek and Llama that publish weights without complete pipelines or data provenance.
Full-stack openness: rather than publishing model weights alone, Oumi aims to release every component of the development lifecycle, including training pipelines, preprocessing code and data provenance, so results can be reproduced and extended. It is also incorporated as a public benefit corporation.
Technology
An end-to-end, unconditionally open-source platform for large foundation models spanning data preprocessing, pretraining, fine-tuning, evaluation, inference and deployment. It can run across environments, works with open models and commercial APIs, and includes prebuilt workflows. The company emphasizes releasing full training pipelines, preprocessing code and data provenance rather than open weights alone.
Go-to-market
Community and research-led adoption of the open-source platform, supported by partnerships with top AI research universities in the U.S. and U.K. and a network of academic founding scholars and advisors, with enterprise offerings sold alongside.
AI researchers and developers, academic research groups, and enterprises in sectors where trust, reliability and scalability requirements are significant.
Geography
Headquartered in the Seattle area; research university partnerships span the United States and the United Kingdom, including the University of Washington.
History
The company emerged from stealth in late January 2025 with a $10 million seed round and a plan to build an open-source AI research and development platform. It has since continued to expand its platform and, according to its own site, announced an "Oumi Summer '26" release.
Risks & controversies
Investor commentary notes that monetizing open-source software is difficult and that aligning a decentralized contributor community requires sustained effort.
Compiled by commissioned research from 6 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 3
launches, deals, and filingsOumi came out of stealth mode announcing a $10 million seed round led by Venrock and Obvious Ventures, with participation from Plug and Play and Ascend, plus angel investors including Ruslan Salakhutdinov, Ragavan Srinivasan, Vipul Ved Prakash and Clem Delangue.
$10M source ↗
Oumi reported partnering with leading AI research universities in the U.S. and U.K., including the University of Washington, and engaging 36 AI researchers.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
▸Research sources · 6
primary sources listed
- Investing in Oumi — Ascend.vcascend.vc · web
6 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Oumi do?
- Oumi is a Seattle-based public benefit corporation building a fully open-source platform for developing large foundation models.
- Who founded Oumi?
- Oumi was founded by Jeremiah Greer, Kostas Aisopos, Matthew Persons, Michael Anthony Schuler, Oussama Elachqar, William Z, Emmanouil (Manos) Koukoumidis in 2024.
- Who are Oumi's investors?
- Oumi's investors include Ascend Venture Capital, Mozilla Ventures, Obvious Ventures, Plug and Play Ventures, Venrock, Ascend.
- How much funding has Oumi raised?
- Oumi has disclosed $10M raised across 1 of its 2 known rounds.
- Where is Oumi headquartered?
- Oumi is headquartered in Bellevue, US.





