Elon Musk’s brood just keeps growing.
The Tesla mogul and one of his top Neuralink executives, Shivon Zilis, welcomed twins in November 2021, just one month before the arrival of his second child with on-again, off-again partner Grimes via surrogate.
The three newborns join Musk’s seven other living children: Techno Mechanicus, Griffin, Vivian, Kai, Saxon, Damian and X.
Meet the billionaire businessman’s kids and their mothers below.
Nevada Alexander Musk
After marrying in January 2000, Musk and Canadian author Justine Wilson welcomed son Nevada Alexander Musk in 2002. Nevada died of sudden infant death syndrome, or SIDS, at only 10 weeks.
Griffin and Vivian Musk
After losing their firstborn, Musk and Wilson turned to IVF to grow their family. She gave birth to twins Griffin and Vivian Musk in April 2004. Griffin and Vivian are now 18.
Vivian came out as transgender in June 2022 when she filed a request to change her first name and take the last name of her mom.
The filing listed the reason as “gender identity and the fact that I no longer live with or wish to be related to my biological father in any way, shape or form.”
Kai, Saxon and Damian Musk
The former couple also used IVF to welcome triplet sons Kai, Saxon and Damian in January 2006. The trio are now 16.
Musk and Wilson divorced in 2008.
X AE A-XII Musk
After two marriages to “Westworld” star Talulah Riley and a brief relationship with actress Amber Heard, Musk started dating singer Grimes in May 2018. She gave birth to their son, X AE A-XII, in May 2020. X is now 2.
X was originally named X Æ A-12, but “Æ” and “12” violated California law for not being part of the English alphabet, forcing his parents to change his name.
Page Six exclusively reported in September 2021 that Musk and Grimes had broken up.
Exa Dark Sideræl Musk
Grimes revealed in March 2022 that she and the SpaceX founder had welcomed his first daughter, the unusually named Exa Dark Sideræl Musk, via surrogate in December 2021. Exa was given the nickname Y after their other child being named X.
Grimes referred to Musk as her “boyfriend” in the bombshell Vanity Fair interview, though she called their relationship “fluid.” Hours after the cover story was published, however, she tweeted that they had since split again.
The musician tweeted in March 2023 that her daughter goes by “Y now, or ‘Why?’ or just ‘?’” However, she admitted the “government won’t recognize” the symbol.
Strider and Azure
Musk quietly welcomed twins with Neuralink director of operations and special projects Shivon Zilis in November 2021, according to court documents obtained by Business Insider in July 2022.
The Twitter CEO and Zilis reportedly filed a petition to change the twins’ names in order to “have their father’s last name and contain their mother’s last name as part of their middle name,” which a judge in Austin, Texas, approved in May 2022.
The children’s names — Strider and Azure — were revealed in Sept. 2023.
Techno Mechanicus
The tech giant secretly welcomed a third child with Grimes, named Techno Mechanicus, according to a book review published by the New York Times on Sept. 9, 2023, on Musk’s soon-to-be-released biography, “Elon Musk.”
Very little is known about the little one or when the kid might have been born.
The exes have nicknamed the child “Tau.”
