Researchers are figuring out how large language models work
Such insights could help make them safer, more truthful and easier to use
![Illustration of a glowing, stylized brain, superimposed over the brain is a microchip](https://www.economist.com/cdn-cgi/image/width=1424,quality=80,format=auto/content-assets/images/20240713_STD001.jpg)
TO MOST PEOPLE, the inner workings of a car engine or a computer are a mystery. It might as well be a black box: never mind what goes on inside, as long as it works. Besides, the people who design and build such complex systems know how they work in great detail, and can diagnose and fix them when they go wrong. But that is not the case for large language models (LLMs), such as GPT-4, Claude and Gemini, which are at the forefront of the boom in artificial intelligence (AI).
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This article appeared in the Science & technology section of the print edition under the headline “Inside the mind of an AI”
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