Alan is co-founder and CTO of Rasa, the world's most widely used and downloaded conversational AI platform. Rasa has raised $40m from top venture firms including a16z and Accel, and counts some of the world's largest brands among it's customers. Alan has lectured on conversational AI at leading universities across Europe and the US, and introduced the 5 levels of AI assistants to the conversational AI community. He holds a PhD in machine learning from the University of Cambridge.