2022About
Mike-Jeason
Leca
I direct AI production. I have been building worlds in image and in film with generative pipelines since 2022, before the wave. I have shipped in two industries. For the game Gamma Strain (Gamma Minus, 2024) I produced the full visual concept book, under a traditional art director. For the French robotics company Manoid (2026) I did the product design and the brand, and I made the video. The robot was shown on BFM Business. In between the contracts, I produce my own worlds and I write them. I work from Paris.
A.0The studio
What Is Jeason Studio?
Jeason Studio is an AI-native production studio. Mike-Jeason Leca launched it in Paris in 2026, after four years working in generative pipelines. It builds original worlds, from the lore to the palette, and delivers them as visual concept books and cinematic video. Everything comes out of a directed pipeline, not out of one-off image generation.
I have worked for two industries. On the game Gamma Strain (Gamma Minus, 2024) I delivered the full visual concept book, and the 3D team took the designs into production. On Manoid (2026), the French robotics company, I covered the product design, the brand and the video. Its robot was shown on BFM Business.
This site documents seven original universes, each with its own lore, its own palette and its own production boards. It also carries thirteen finished pieces: three short films, seven teasers and reveals, three ShowGens. They all have original sound design. The principle behind them does not change: directed, not generated.
A.1Timeline
Four Years
AI-Native
Before the wave
I started building pipelines with Midjourney and ChatGPT, before mainstream adoption.
Gamma Strain, Gamma Minus
I produced the full visual concept book across four categories, under a traditional art director. The 3D team took the designs into production.
Continuous original production
I built seven original universes with the same method, in image and in film. Between two client contracts, I never stopped producing for myself.
Manoid, robotics
I did the industrial product design and the brand wrap for the French robotics brand, and I directed two showcase films. The robot was shown on BFM Business.
The studio
I launched the AI-native production studio: films, games and worlds.
A.2Capabilities
What I Do
Character & world design
Production boards
I design creatures, weapons, props, environments and characters. I make the cover visuals that go with them. Everything ships as production boards, with the variants, the briefs and the title blocks, ready for the 3D and design teams downstream.
Worldbuilding
World bibles
Each universe arrives complete: a named cast, written lore, its factions, its spec sheets and its mapping. I have done it seven times, in seven registers.
Motion
AI animation
I make short films and showcase films with their own sound design. The character holds from one cut to the next, the palette stays locked, and the film comes back edited and finished. I do it for my own worlds and for clients.
A.3Pipeline
Tools &
Method
| Image | Midjourney (advanced, since 2022) ChatGPT Nano Banana. I use virtually every current image model, and I pick per project. |
|---|---|
| Language | ChatGPT (advanced: custom GPTs, dedicated prompting pipelines, one GPT per universe) Claude |
| Video | Seedance Hailuo. I generate the shots, then I edit them into finished films. |
| Audio | ElevenLabs Suno, for sound design and score. |
| Workflows | I adapt them per project. When a pipeline calls for it, I scale to node-based interfaces (Magnific Spaces). |
| Method | I map every keyword to the visual effect it produced, and I grade how hard it pulled. You can read the pipeline, brief against it and steer it. |
| Provenance | Since the Manoid engagement, every deliverable goes through visual provenance screening before it ships under a client’s name. |
Je dirige des productions IA depuis 2022. J’ai livré dans deux secteurs : le book visuel complet du jeu Gamma Strain (Gamma Minus, 2024), sous la direction d’un directeur artistique traditionnel, puis le design produit et la marque pour Manoid, la marque française de robots (2026), dont j’ai aussi réalisé la vidéo. Le robot est passé sur BFM Business. Entre les contrats, je construis mes propres univers. Je suis à Paris et je prends des commandes, en français comme en anglais.
A.4Commissions
Working
Together
| What you can commission | A world bible, a visual concept book, a short film, or the direction of an AI-native pipeline. |
|---|---|
| How it starts | An email. Name the project, the format you need and the date you need it for. |
| A world bible | A complete world, delivered ready to work from. |
| A concept book | Numbered boards with variant sheets, narrative environment briefs, cover visuals and the process boards. The Gamma Strain book ran to fourteen boards. |
| A film | Generated shot by shot, then edited and finished with its sound. |
| What you can check | Every pipeline is documented: each keyword is mapped to the visual it produced. You can read it, brief against it and steer it. |
| Before it ships | Every deliverable goes through visual provenance screening before it ships under a client’s name. |
| Languages | French or English, from Paris. |