Arthur Mensch
Co-founder and CEO of Mistral AI, Europe's leading open-model lab.
Arthur Mensch is the co-founder and CEO of Mistral AI, a French company that has become Europe’s most prominent builder of AI models. Before founding Mistral he worked as a researcher at Google DeepMind.
Mensch is an outspoken advocate for open-weight models — systems whose inner workings can be downloaded and run on your own hardware. He argues that companies relying entirely on closed, cloud-only models effectively hand their provider a front-row seat to how their business operates, since every query reveals something about what the company is doing.
His perspective is central to one of the field’s defining debates: whether the future belongs to a handful of closed “frontier” providers, or to open models that organisations can control, inspect and keep in-house.