Some of the world’s most prominent names in technology are pledging billions to build artificial-intelligence infrastructure in the U.S. in a joint venture called Stargate. Notably missing? Microsoft. WSJ’s Tom Dotan explains how the partnership that launched the AI boom has deteriorated. Further Reading: - Tech Leaders Pledge up to $500 Billion in AI Investment in U.S. - OpenAI’s Stargate Deal Heralds Shift Away From Microsoft - Musk Pours Cold Water on Trump-Backed Stargate AI Project Further Listening: - Artificial: The OpenAI Story - What's the Worst AI Can Do? This Team Is Finding Out. Learn more about your ad choices. Visit megaphone.fm/adchoices