Daedalus · a one-person AI studio

AI systems that show their work.

Answers link to their sources, agents log what they were thinking, and every number comes with the measurement behind it. I build knowledge graphs, agents, and production ML that way, start to finish, on my own. Orpheus, an explorable atlas of 40,000 artists and nearly 2,900 musical styles, went live in May 2026. Pythia, an oracle over the same graph that cites every claim, went live in August with its evaluation published. Walk in, or ask.

The Pixies room in Orpheus on a phone: the lino-stamp header, score and reach chips, twenty-one style chips, and the first group of related artists

One of 43,000 rooms.

The Pixies, on a phone. Twenty-one styles, thirty-three related artists in the first group, and every chip is a door to another room. The stamps in the header are carved linoleum.

This is what the studio builds: the graph underneath, and a way in that a person can actually use.

Ten years in every French post office.

Route-design software I led, deployed nationally by La Poste and run for a decade.

Patented at 8 million users.

Neural-network risk scoring for KnowBe4’s security-awareness platform; granted US patent 10,673,876.

400,000 agents, validated.

A model of the US Navy’s entire enlisted workforce, calibrated against reality.

Measured before it shipped.

Pythia’s evaluation existed before the system did: 115 gold questions, recall@10 0.89 at launch, blind spots written down beside the score.

The studio is called Daedalus.

In the myth, Daedalus is the craftsman who built the labyrinth. In this studio the labyrinth is data, most of it contradictory and unmapped. Each project builds a structure inside it and hands you the thread.

The first project family maps musical culture, in stages. Knossos, the data core, reconciles four sources into one graph. Orpheus lets you walk it: 43,000 rooms. Minotaur is an agent that audits the rooms and writes down why it flagged what it flagged. Pythia answers questions over the graph, with an evaluation you can read. Lyre, next, puts browsing and asking on one screen. There’s a longer list waiting, and music is only the first domain.

One person, end to end: the schema, the pipeline, the agent, the interface, and the linocut stamps in the corners of the UI.

you see the whole map wander ask a question Ariadne the map Orpheus 43,000 rooms Pythia the oracle Knossos the graph 40,000 artists and 2,900 styles, reconciled from four sources into one graph: what all three doors are built on.
Three ways in, one graph underneath. The auditor’s loop and the sources are on the studio page.

Five notes so far. Start with Four sources that disagreed, on what to build when Wikipedia, Wikidata, MusicBrainz and Spotify cannot agree who an artist is. All notes →

What I build for clients

For teams whose data is blocking the roadmap, whose agents have to hold up in front of customers, or whose AI bills nobody can explain.

Knowledge graphs & data architecture

Four conflicting sources reconciled into one coherent schema, with entity resolution that holds at 40,000 entities. If your data is heterogeneous and it is holding up the roadmap, that is what I do.

Agentic AI, built and measured

Agents that do a job and show their reasoning. I’ve built two from scratch: an auditor that invents its own issue taxonomy and logs every step, and an oracle that cites every claim and shipped with its evaluation published. If your team is designing agent infrastructure, I’ve already made the mistakes worth paying for.

Principal-level ML, fractionally

Twenty-five years of production ML (patents, systems serving millions of users, fleet-scale monitoring), a few days a month, no full-time hire.

The through-line

I was born in Paris and grew up in Ouagadougou, Kinshasa, Lomé, and Dakar. I did a PhD in neural networks in the 1990s, then spent twenty-five years making complex systems legible for the US Navy, the French post office, a Fortune 500 insurer, and an 8-million-user security platform. I speak French, collect bandes dessinées, and carve linoleum.

I built Orpheus because music always felt like a vast, ungraspable space, and I wanted to map it. And because the best cure for “what should I listen to?” is a maze: start at a musician or style you love and see where it takes you.

Siegfried Martens in the study, globe and bookshelves behind

If your data has a labyrinth in it, let’s talk.

I take a few engagements a year, and only the interesting ones. The fastest way to find out whether yours is one of them is a conversation.