Every day, users from all over the world perform hundreds of millions of search queries with Bing in more than 100 languages. Whether this is the first or the millionth time we see a query, whether the best results for a query change every hour or barely change at all, our users expect an immediate answer that serves their needs. Bing web search is truly an example of AI at Scale at Microsoft, showcasing the next generation of AI capabilities and experiences. Over the past few years, Bing and Microsoft Research have been developing and deploying large neural network models such as MT-DNN, Unicoder, and UniLM to maximize the search experience for our customers. The best of those learnings are open sourced into the Microsoft Turing language models.