Businesses are increasingly using generative AI, as evidenced by the release of OpenAI’s GPT-4, a highly advanced artificial intelligence model. This has led to a significant increase in the market capitalization of America’s technology industry, with companies like Nvidia reporting impressive fourth-quarter results. Despite this, sales of AI software by big tech companies remain relatively small, indicating the need for these firms to generate significant revenue from their services. The real-world adoption of generative AI tools has been slow, but it is gradually changing the nature of white-collar work. Previous technological breakthroughs have transformed office work, and the rise of generative AI is expected to have a similar impact. To learn more, visit www.economist.com