Episode 79 of ChatGPT and Beyond explores how AI model marketplaces are evolving into full-fledged operating systems. Lucas and Luna examine the shift from standalone AI models to integrated platforms that manage data, workflows, and identity, using real examples like Hugging Face, OpenAI's GPT Store, and Google's Vertex AI. They discuss how this transformation affects developers, enterprises, and the broader tech landscape, with insights from recent market data showing the divergence between AI infrastructure and software stocks. Listeners learn why model marketplaces are becoming the new OS wars of the 2020s.