From self-taught to founder.
Turned down by the computing programs he applied to, Fabien Marie taught himself by running game servers: infrastructure and networking first.
From 2020 to 2024, he spent five years training his own language model, on his own savings. The project became a platform that brings together the major models on the market: Moon AI, open to the public since July 2025 and officially launched on May 1, 2026.
He founded Stellarr Studio, a French simplified joint-stock company (SAS) based in Pont-Audemer, which he chairs. In 2025, the town of Pont-Audemer honored him at “La Jeunesse a du talent”, a local award for young talent.
Founder and president of Stellarr Studio.
- He leads the design of Moon AI: the choice of models, Moon Blur, which masks the sensitive data it detects before it reaches the model, the mobile apps and the Moon CLI command-line tool.
- He publishes the studio’s model, Moon, on Ollama.
- He writes guides on AI in France for realmoon.ai: what is French, what is hosted where, and what is not.
Profiles: GitHub, Ollama, Stellarr Studio on LinkedIn.
Why Moon AI.
“When you paste a contract into an AI, you are sending it to someone else. I wanted people to get the most out of the big models without handing them what is none of their business.”
AI in France, explained.
Sourced, dated guides: what is French, what is hosted where, and what is not.
AI in Normandy: who builds artificial intelligence there
Labs, networks, public funding and companies: who works on AI in Normandy, and a concrete example in Pont-Audemer.
French AI: the options, and what is really French
Mistral, Moon AI, Mammouth, the French government’s assistant: what is French in each option, from the publisher to the model.
A French alternative to ChatGPT: an honest comparison
Vibe by Mistral, Moon AI or Mammouth instead of ChatGPT: publisher, models, hosting, price and limits.
Sovereign AI or AI hosted in France: what it means
Hosting, applicable law, the Cloud Act, SecNumCloud: what these words really guarantee, and the questions to ask.
Moon IA or Moon AI: how to find the right service
The exact name, the official addresses, the apps and the similarly named services not to confuse it with.
They wrote about it.
- Actu.fr, July 11, 2026 (in French)
- France 3 Normandie, May 16, 2026 (in French)
- BFM Normandie, April 20, 2026 (in French)
- Paris-Normandie, April 2, 2026 (in French)
- Ouest-France, October 28, 2025 (in French)
- Le Parisien, July 30, 2025 (in French)
Get in touch.
Stellarr Studio SAS, Pont-Audemer (Eure, Normandy, France).