Palantir Technologies has entered into a partnership with Microsoft to provide secure cloud computing, artificial intelligence, and analytical capabilities to support the missions of defense and intelligence agencies of the U.S. government. This news resulted in an 11% increase in Palantir's stock price, and Microsoft's stock also saw an uptick. The collaboration allows the U.S. government to leverage Azure OpenAI services to access large language models, Microsoft’s partnership with OpenAI, and Palantir's AI platform.