Chinese AI startup DeepSeek is making waves in the tech world. Since the release of its large language model, R1, competitors like OpenAI—the creators of ChatGPT—have accused DeepSeek of using proprietary models, including ChatGPT, to help train and develop their own AI technology. In this Expert Q&A with Michigan News, Ambuj Tewari, a professor of statistics at the University of Michigan and an expert in machine learning, shares his insights on the technical, ethical, and market-related aspects of DeepSeek’s breakthrough.