Julien Chaumond
About Julien Chaumond
Julien Chaumond is a co-founder and the Chief Technology Officer of Hugging Face. Hugging Face was founded in 2016 with Clément Delangue and Thomas Wolf. It began in New York as a chatbot product and grew into a platform for machine learning models, datasets and developer tooling.
Crunchbase says he previously worked at the French Ministry of the Economy and Finance as an advisor to the Deputy Minister for Digital Affairs. It also says he earned an MSc in Electrical Engineering and Computer Science at Stanford University. His X profile lists Stanford and Polytechnique, and gives his locations as Paris and New York. Crunchbase lists his location as Brooklyn, New York.
He publishes on the Hugging Face Hub and blog under the handle julien-c. His X bio describes his focus as ML and AI for everyone and building products for communities.
Crunchbase counts 23 investments by Julien Chaumond as an individual. It records 0 lead investments, 0 exits and 0 companies founded under his personal profile. The Crunchbase page also shows a higher investment count of 26 in one view, so the totals differ slightly between views. Lounge uses the 23 figure.
Public data on his rounds is thin. Crunchbase hides the dates and amounts on its free view. We could not find a personal website, a fund, or a statement of how much he invests per deal, so none of that is included here.
Per Crunchbase, 20 of his investments are in AI companies and were made since 2023. Most of the AI companies in his portfolio are early-stage.
Crunchbase's AI list includes altrove AI, Dust, Scenario, Yutori, dottxt, Argmax, Polycam, Runpod, Continue, AniML, Phospho and Fal. His Crunchbase page also lists Lightpanda (pre-seed), Ankar AI (seed), Pyannote AI (seed) and Sourcetable (seed). altrove AI is shown as his most recent listed investment, a seed round.
The companies cover model infrastructure and compute, developer tools, speech and audio, and applied AI products. His day job at Hugging Face is in open-source machine learning, which is the same area as much of this portfolio.
The rounds Crunchbase shows for him are pre-seed and seed. By sector, his portfolio centers on AI infrastructure, developer tools and applied AI products. He is based in New York. His public portfolio does not show a geographic restriction, so founders outside the US should not assume one either way.
He has not published a check size, a thesis document or a list of criteria, and we have not found any public interview in which he gives one. Because he has no recorded lead investments, the public record suggests he joins rounds led by others. Treat that as an inference from the data, not a stated policy.
Founders who want to approach him can start from his public work on open-source AI at Hugging Face and on X at @julien_c.
- altrove AI: AI startup in which he invested in a seed round; Crunchbase shows it as his latest listed investment.
- Dust: AI startup listed in his Crunchbase AI portfolio.
- Scenario: AI startup listed in his Crunchbase AI portfolio.
- Yutori: AI startup listed in his Crunchbase AI portfolio.
- dottxt: AI startup listed in his Crunchbase AI portfolio.
- Argmax: AI startup listed in his Crunchbase AI portfolio.
- Polycam: listed in his Crunchbase AI portfolio.
- Runpod: listed in his Crunchbase AI portfolio.
- Continue: listed in his Crunchbase AI portfolio.
- Fal: listed in his Crunchbase AI portfolio.
- Pyannote AI: seed round listed on his Crunchbase profile.
- Lightpanda: pre-seed round listed on his Crunchbase profile.
AI portfolio
Investing activity
Julien Chaumond has made 23 investments according to Crunchbase. 20 of those investments since 2023 were in AI companies, including altrove AI, Dust, Scenario, Yutori and dottxt.
Deals
Frequently asked questions about Julien Chaumond
Is Julien Chaumond an angel investor in AI startups?
Yes. Crunchbase lists 23 investments by him, 20 of them in AI since 2023. They include altrove AI, Dust, Scenario, Yutori, dottxt and Argmax.
Who is Julien Chaumond?
He is the co-founder and CTO of Hugging Face, which he co-founded in 2016 with Clément Delangue and Thomas Wolf. He lives in Brooklyn, New York, and studied at Stanford.
What stage does Julien Chaumond invest in?
The rounds shown on his Crunchbase profile are pre-seed and seed, for example Lightpanda (pre-seed) and altrove AI, Ankar AI and Pyannote AI (seed).
What is Julien Chaumond's check size?
It is not public. We found no stated check size and Crunchbase hides his deal amounts on its free view.
Does Julien Chaumond lead rounds?
Crunchbase records 0 lead investments for him, so he appears to invest alongside other lead investors.
Where can founders find Julien Chaumond online?
He is on LinkedIn at linkedin.com/in/julienchaumond and on X as @julien_c. He also publishes on the Hugging Face Hub and blog as julien-c.
Is Julien Chaumond an angel investor?
Yes. Julien Chaumond invests personally as an angel. Crunchbase counts 23 investments.
What AI companies has Julien Chaumond invested in?
Julien Chaumond's AI investments include altrove AI, Dust, Scenario, Yutori, dottxt, Argmax, Polycam and Runpod.
Where is Julien Chaumond based?
Julien Chaumond is based in Brooklyn, United States.
How can founders reach Julien Chaumond?
Founders on Lounge can see Julien Chaumond's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with them under Warm Paths, and add Julien Chaumond to their Investor Pipeline to track the conversation.