Elon Musk, the 52-year-old Tesla founder and tech mogul, quietly welcomed a new member to his ever-growing family earlier this year. The baby’s mother is Shivon Zilis, the director of special projects at Neuralink Corp., another of Musk’s ventures.

Musk and his partners have consistently aimed to shield their children’s lives from the public eye. This commitment to privacy was underscored in September 2023, when Claire Boucher, better known as Grimes and the mother of three of Musk’s children, took to X (formerly Twitter) to request privacy for their children. In a lengthy post, she addressed the media frenzy surrounding her co-parenting relationship with Musk and the recent revelation of their third child, a son named Techno Mechanicus, born shortly after Musk’s children with Zilis.

Elon Musk’s journey into fatherhood began in 2002 with the birth of his first son, Nevada Alexander, with his first wife, Justine Wilson. Tragically, Nevada passed away at 10 weeks old due to sudden infant death syndrome (SIDS). Wilson and Musk later had twins, Vivian Jenna, and Griffin, in 2004, followed by triplets Kai, Saxon, and Damian in 2006, all conceived through IVF.

In May 2020, Musk and Grimes welcomed their first child together, a son named X Æ A-Xii. The couple later had a daughter via surrogate in December 2021, named Exa Dark Sideræl. Around the same time, Musk secretly welcomed twins Strider and Azure with Shivon Zilis in November 2021.

The revelation of Musk’s newest child coincides with the release of Walter Isaacson’s 2023 biography about Musk, which disclosed the birth of Musk and Grimes’ third child, a son named Techno Mechanicus, who also goes by “Tau.”

Musk confirmed the birth of his latest child with Shivon Zilis, dismissing any notions of secrecy. “As for ‘secretly fathered,’ that is also false,” he stated. “All our friends and family know. Failure to issue a press release, which would be bizarre, does not mean ‘secret,’” he added. Despite this clarification, the sex and name of Musk’s youngest child remain undisclosed, highlighting the couple’s commitment to privacy.

The news of Elon Musk’s 12th child came as a surprise to those who follow his life online. Comparisons to Nick Cannon, known for his large family, quickly surfaced. “Nick Cannon and Elon single-handedly repopulating the earth,” joked one Instagram user. “Elon and Nick Cannon competing?” and “Nick, you got 24 hours to respond!” were other common comments.