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To assess the effectiveness of current A.I.-detection technology, The New York Times tested five new services using more than 100 synthetic images and real photos. The results show that the services are advancing rapidly, but at times fall short.

Generative A.I.’s specialty is language — guessing which word comes next — and students quickly realized that they could use ChatGPT and other chatbots to write essays. That created an awkward situation in many classrooms. It turns out, it’s easy to get caught cheating with generative A.I. because it is prone to making stuff up, a phenomena known as “hallucinating.” But generative A.I. can also be used as a study assistant. Some tools make highlights in long research papers and even answer questions about the material. Others can assemble study aids, like quizzes and flashcards.

ChatGPT-style artificial intelligence is coming to health care, and the grand vision of what it could bring is inspiring. Every doctor, enthusiasts predict, will have a superintelligent sidekick, dispensing suggestions to improve care. But first will come more mundane applications of artificial intelligence. A prime target will be to ease the crushing burden of digital paperwork that physicians must produce, typing lengthy notes into electronic medical records required for treatment, billing and administrative purposes. For now, the new A.I. in health care is going to be less a genius partner than a tireless scribe.

The most time-consuming part of shopping for many is the research process: poring through review sites and plucking out the item that’s right for you, whether it’s coffee equipment or a hotel room that is both convenient and affordable. I’ll cover what A.I. can do to help make informed purchasing decisions quickly and efficiently.