Independent AI studio · Paris, France

A mind. A presence.

We build NUMEN. A personality engine that gives characters a consistent identity, a memory and a voice.

Discover NUMEN
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01What we do

Six disciplines.
One approach.

From research to the final experience, six complementary disciplines shape our work. Select one to explore.

Explore a discipline
01 — Cognition

Personality engine& character continuity

An architecture inspired by cognitive psychology. It brings evolving emotional states, long-term memory and consistent behavior to AI characters.

  • Simulated emotions
  • Long-term memory
  • Neural voice
  • On-device
02 — Gaming

Characters with continuity

NPCs that remember your choices and respond to your shared history. Their personality develops from one scene to the next.

Unreal · Unity · Custom engines
03 — Voice & presence

Neural voice cloning

Give each character a distinct voice from a few seconds of audio, with expression that adapts to their emotional state in real time.

Zero-shot · Real-time
04 — Research

Applied R&D

Research and evaluation to understand what makes a character believable, supported by academic collaboration.

Evaluation · Benchmarks · Open lab
05 — Integration

Enterprise AI

AI integration for insurance, finance, legal and other regulated industries. Standard or tailored solutions, with attention to data privacy.

Insurance · Finance · Legal
06 — Strategy

Consulting & training

Practical support for game studios, publishers and institutions: assess an idea, integrate AI characters or develop your team’s skills.
Workshops · Roadmaps · Prototypes.

02In developmentIN DEVELOPMENT

Meet NUMEN.
Character, by design.

Our personality engine is in internal alpha. Two other research projects are in development. The sequence below illustrates how character memory can work.

01 / NUMENPersonality, memory and voiceR&D — 2026
Built to run on your device.Explore the engine
INTERNAL ALPHA · 2025 → 2027

Personality that carries through

A personality engine for characters with evolving emotional states and a memory of past interactions. It runs locally on the player’s machine.

  1. Q4 2025Core cognitive architecture
  2. Q1 2026Long-term memory & neural voice
  3. Q2 2026Working internal alpha
  4. Q4 2026Closed beta with partners
  5. 2027SDK for studios
03Our vision
03.1

A distinct personality. Consistent from one interaction to the next.

03.2

Memory gives each new encounter the context of those that came before.

03.3

An experience designed to run on your device.

Mickaël Rennard, founder of NeuraFox Labs
Founder & CEO
Mickaël Rennard
04Meet the founder

A simple idea.
A lasting connection.

A note from the founder

I started NeuraFox Labs with a simple idea: a character should remember the moments you share.

With NUMEN, I’m exploring how personality, memory and voice can make those interactions more consistent. A conversation should have context. A choice should shape what happens next.

Local execution is central to that work. I want to give creators the tools to build characters with continuity, while keeping their memory on the player’s device. The aim is simple: make each encounter matter.

Mickaël Rennard
Founder & CEO
Open to partnerships & investment
05Method

From blank page
to production.

Four stages to turn an idea into a working product, with clear goals at every step.

01

ExplorationResearch & direction

Review the research, understand user needs and define the ideas to test.

02

PrototypeWorking prototype

Build quickly, measure the results and test with pilot partners.

03

DevelopmentReady for production

Strengthen the architecture, security and monitoring. Document and test the system.

04

ReleaseLaunch & improve

Roll out gradually, measure the impact and help partners take ownership.

06Get in touch

Your next idea.
Let’s talk.

A partnership, a research project, an investment or a question. We’d like to hear from you.