Foundational models like GPT-4, the large language model behind ChatGPT, have hoovered up content from publications like The New York Times and social media sites like Reddit and OpenAI, and it faces several lawsuits because of this. John Thompson, global head of artificial intelligence at EY and author of the book Data for All, has set up what is believed to be the largest private, secure generative AI environment in the world, with focus on keeping internal data protected.