Large Language Models are a type of artificial intelligence that can analyze and generate human language, trained by vasts amount of data. While Microsoft does have its own AI models, much of the advanced capabilities in its recent offerings are powered by OpenAI's LLMs.
The market for chatbots and related AI tools has exploded since OpenAI introduced ChatGPT in late 2022, giving consumers a new way to seek information online outside of traditional search. Shortly after, Microsoft it announced a partnership with OpenAI to incorporate ChatGPT into the Bing search engine.