One studio.
A product that works alongside you.
Fabien Marie learned infrastructure and networking by running game servers, then spent several years training his own model. The project grew into a platform that brings together models from around the world.
Moon keeps an international ambition: bringing models, tools and uses together in a space open to individuals and teams. The app is at chat.realmoon.ai.
How Moon AI began.
2018 to 2019
A closed door, then a keyboard
As a teenager in Pont-Audemer, Fabien Marie wanted to work in computing. The programs he aimed for turned him down because he did not fit the expected profile. He taught himself instead, running and developing game servers from his bedroom. That is where he learned the basics of infrastructure and networking.
2020 to 2024
Five years training a model
He began training his own language model. With no outside funding, he put his personal savings into it, several tens of thousands of euros, to buy graphics cards. His bedroom became a small compute center running around the clock.
Late 2024
Stellarr Studio is born
The project left the bedroom. Fabien Marie founded Stellarr Studio in Normandy and brought people on board to turn solo work into a company able to run a service in production.
July 2025
Moon AI opens to the public
The platform became available for free. The regional press picked up the story of this AI built in Normandy.
Late 2025
From a single model to an orchestrator
Moon AI no longer relied on its own model alone: the platform became an orchestrator able to route requests to dozens of models from around the world, while keeping the reversible masking of data on the French side.
2026
A company takes shape, and the official launch
Supported by the CCI Seine Estuaire and the Normandy Region, the company structured its governance. The official release came out on May 1, 2026, followed by the iOS and Android apps and Moon CLI, the coding agent for the terminal.
What we build.
The Moon AI platform
More than 100 AI models (GPT, Claude, Gemini, DeepSeek, Mistral, Llama and others) brought together in one interface, with one subscription.
See the featuresMoon Blur
Our in-house reversible masking layer. It masks the sensitive data it detects, such as email addresses, IBANs and social security numbers, before the request goes to the model.
Understand Moon BlurMoon CLI
A coding agent that lives in the terminal, with the same data protection as the web platform.
Read the docsThe mobile apps
Moon AI is available on iPhone from the App Store and on Android from Google Play.
Install on mobileInfrastructure in France.
Moon AI’s infrastructure is spread across two sites in France operated by OVHcloud: Strasbourg for the app and the API, Roubaix for storage and backups. The two sites communicate over a private network.
Before a request goes to a model, Moon Blur detects and masks the personal data it recognizes in the request. The model works on masked text, and the values are put back in the answer you read.
Stellarr Studio is a French company subject to European law. Data processing is described in the privacy policy, and the contractual commitments in the data processing agreement.
A publisher you can identify.
Moon AI is a product of Stellarr Studio SAS, founded by Fabien Marie. The company’s identity, registration and contact details are in the legal notice.
Several takes on one idea.
A model can be right for one task and less so for another. Moon lets you choose, or lets Auto mode route your request.
A result you can use.
A first draft, a presentation, a spreadsheet or an image: the creation tools carry the conversation into your work.
Data choices, explained.
Moon Blur masks the sensitive information it detects. You know what is masked, what is not, and who processes your requests.
Your next breakthrough can start here.
Create a free account, with no credit card, or talk with the studio about what you need.