From the original report on The Information:<p><i>For more than a year, Microsoft’s engineers and researchers have worked to create personalized AI tools for composing emails and documents by applying OpenAI’s machine-learning models to customers’ private data, said another person with direct knowledge of the plan</i><p><a href="https://www.theinformation.com/articles/ghost-writer-microsoft-looks-to-add-openais-chatbot-technology-to-word-email" rel="nofollow">https://www.theinformation.com/articles/ghost-writer-microso...</a><p>(I have submitted also the original link in a separate thread, but was not able to add comments for some reason; @dang you might want to merge them.)