This Hard Fork podcast episode discusses Elon Musk's new AI model, Grok 3, its capabilities, and its implications. The hosts, Kevin Roose and Casey Newton, analyze Grok 3's performance, comparing it to other models and discussing its rapid development. They also speculate on Musk's broader ambitions in the AI field, considering his influence within the US government and the potential for future AI regulation. A conversation with Robinhood CEO Vlad Tenev follows, exploring the democratization of investing and the ethical concerns surrounding high-risk, speculative assets. Finally, the hosts delve into "vibe coding," a new approach to software development using AI, showcasing a humorous example of an AI-generated hot tub maintenance app.