TechCrunch reports that a quarter of startups in Y Combinator’s current cohort have codebases that are 95% AI-generated. YC managing partner Jared Friedman revealed this trend during a YouTube discussion on “vibe coding” – using natural language and AI to create code. While AI-generated code can have flaws, YC leaders emphasize the importance of developers maintaining coding skills to debug and sustain products long-term. The article discusses the growing popularity of AI-powered coding tools, with several startups raising significant funding in this space. YC CEO Garry Tan believes this shift in coding practices is here to stay.