Y Combinator's Summer 2024 Demo Day in San Francisco showcased a diverse range of startups, with a significant focus on artificial intelligence. The event, which took place over two days, featured presentations from approximately 240 companies in the S24 batch. Notable startups included LumenOrbit, Taxo, Parley Law, SimplexData, and Sepal AI. Many of these companies are leveraging AI to address various challenges, from estate planning to clinical trial data automation. The event highlighted the impressive talent of European founders, with participants from countries such as France, the UK, Romania, and Germany. Y Combinator CEO Garry Tan emphasized the importance of technology in solving major industry problems and announced plans to return to in-person events by the end of the year. The average valuation cap for the startups was around $25M to $30M, with AI being a dominant theme among the companies.