AI Remixes: Who’s Tweaking Your Favorite Model, and Should We Be Worried? We’ve all heard about powerful AI models like the ones that can write stories, create images, or answer complex questions. Companies that build these ”foundation models” are starting to face rules and regulations to ensure they are safe. But what happens after these models are released? Often, other people and companies take these models and customize them – they ”fine-tune” or ”modify” them for specific tasks or uses. These are called downstream AI developers.