1. Nevada Alexander Musk (2002 – 2002)
Elon Musk & Justine Musk’s first child.
Passed away at 10 weeks old due to Sudden Infant Death Syndrome (SIDS).
His death deeply affected Musk and Justine, leading them to use IVF for future children.
2 & 3. Griffin Musk & Vivian Jenna Wilson (Twins, 2004)
Born via IVF to Elon and Justine Musk.
Griffin Musk keeps a low profile and stays out of the public eye.
Vivian Jenna Wilson transitioned in 2022 and legally changed her name.
She stated she no longer wishes to be associated with her father.
Took her mother’s maiden name, Wilson.
4, 5 & 6. Kai, Saxon & Damian Musk (Triplets, 2006)
Also born via IVF to Elon and Justine Musk.
Little is known about them as they live private lives.
They are occasionally seen with Musk at events.
7. X Æ A-Xii Musk (X, born 2020)
Mother: Grimes (Claire Boucher)
Originally named X Æ A-12, but changed due to California naming laws.
Name breakdown:
X = The unknown variable.
Æ = "Ai" (Artificial Intelligence or "love" in some languages).
A-12 = Named after the Archangel 12, a reconnaissance aircraft.
Musk calls him “X” for short.
He is frequently seen with Musk at events and on social media.
8. Exa Dark Sideræl Musk (Y, born 2021)
Mother: Grimes
Born via surrogate.
Name breakdown:
Exa = Refers to the computing term "exaFLOP" (supercomputing power).
Dark = Represents the unknown and mystery.
Sideræl (pronounced "sigh-deer-ee-el") = A reference to deep space time and Grimes' favorite "Lord of the Rings" character.
Musk and Grimes initially kept her birth secret.
9. Techno Mechanicus Musk (Tau, born 2022)
Mother: Grimes
Musk revealed his birth in 2023 in Walter Isaacson’s biography.
Nicknamed "Tau", referring to the mathematical constant.
Very little is known about him.
10 & 11. Strider & Azure Musk (Twins, 2021)
Mother: Shivon Zilis (Neuralink executive).
Born via IVF.
Their birth was kept secret until July 2022, when court documents surfaced showing Musk requested they take his last name.
Their birth came just weeks before Musk and Grimes welcomed their second child.
Shivon Zilis is a top executive at Neuralink, one of Musk’s companies.
Musk’s Views on Fatherhood
Musk has publicly stated he loves being a father and believes population decline is a major problem.
Despite his busy career, he tries to spend time with his kids, especially X Æ A-Xii (X).
His relationship with Vivian Jenna Wilson appears to be estranged.
He has also stated that he is not very involved when they are babies but becomes more active when they grow older.
Summary of Elon Musk’s 11 Children