Arthur Mensch is a co-founder and CEO of Mistral AI. The company lists him alongside two other co-founders; he is not its sole founder.
Role at Mistral AI
Mistral’s official About page identifies Mensch as co-founder and CEO. The same page names Guillaume Lample as co-founder and Chief Science Officer and Timothée Lacroix as co-founder and CTO.
Person, company, and products
Leadership of Mistral AI should not be confused with individual authorship of every model or product. Those are developed by teams across the organization.