Henri Dubois

About

I optimize the language layer of AI products — the prompts, system instructions, and evaluation frameworks that determine whether an LLM delivers business value or embarrassment. Based in Paris, I work with marketing agencies, AI product teams, and edtech companies across Europe and North America. My work has improved content quality scores by 40%, reduced hallucination rates by 65%, and cut prompt costs by half for my clients. I specialize in system prompt architecture, persona design for educational AI tutors, few-shot example curation, and building prompt versioning systems that let non-technical teams iterate safely. Fluent in French and English.

Skills & Expertise

AI Stack

Industries