Ask the new artificial intelligence (AI) tool ChatGPT to write about the cause of the American Civil War and you can watch it produce a school report in just a few seconds. The technology is so good that it can write sentences like ones written by a human. And it is also free. The tool has been in use since November. But it is already raising tough questions about the future of AI in education, the tech industry, and a number of professions. New York City school officials recently started blocking the writing tool on school devices and networks. The decision by the largest school system in the United States could affect how other school systems deal with the technology. Teachers are now trying to find out how to prevent students using the AI tool for cheating. And the creators of ChatGPT also say they are looking for ways to detect misuse.