Meet Lucy Guo, the New Youngest Self-Made Woman Billionaire Dethroning Taylor Swift

Lucy Guo, the 30-year-old co-founder of high-flying A.I. startup Scale AI, just dethroned Taylor Swift as the youngest self-made female billionaire. With a net worth nearing $1.3 billion, Guo landed at No. 26 on Forbes’ annual “America’s Richest Self-Made Women” list, published yesterday (June 3).

Raised in Fremont, Calif. by Chinese immigrant parents, Guo was “always an entrepreneur growing up,” she said in a 2023 interview—selling Pokémon cards and colored pencils in kindergarten. By second grade...