Saggu A.Ante L.Mahidol University2023-06-022023-06-022023-01-01Finance Research Letters (2023)15446123https://repository.li.mahidol.ac.th/handle/20.500.14594/82906The introduction of OpenAI's large language model, ChatGPT, catalyzed investor attention towards artificial intelligence (AI) technologies, including AI-related crypto assets not directly related to ChatGPT. Utilizing the synthetic difference-in-difference methodology, we identify significant "ChatGPT effects,” with AI-related crypto assets experiencing average returns ranging between 10.7% and 15.6% (35.5% to 41.3%) in the one-month (two-month) period after the ChatGPT launch. Furthermore, Google search volumes, a proxy for attention to AI, emerged as critical pricing indicators for AI-related crypto assets post-launch. We conclude that investors perceived AI-related crypto assets as possessing heightened potential or value after the launch, resulting in higher market valuations.Economics, Econometrics and FinanceArticleSCOPUS10.1016/j.frl.2023.1039932-s2.0-85160092430