A look at efforts by startups, such as Positron and Groq, to develop inference-focused chips that aim to be more energy efficient and performant than Nvidia's (Christopher Mims/Wall Street Journal)

Christopher Mims / Wall Street Journal: A look at efforts by startups, such as Positron and Groq, to develop inference-focused chips that aim to be more energy efficient and performant than Nvidia's  —  Tech giants and startups alike are trying new approaches to what has been a vexing problem  —  “I can't wrap my head around it …