The BBC reported that the boy is the fourth child of Musk and Shivon Zilis, 39, a senior executive director of Neuralink, a company owned by the technology billionaire.
"After discussing with Elon and on the birthday of beautiful Arcadia (the name of their third child), we felt it better to also share directly about our wonderful and incredible son, Seldon Lycurgus" - Ms. Zilis said in a post on social network X.
But she did not reveal when the child would be born. Under the post, Musk, 53, responded with a red heart icon.
Zilis' announcement comes two weeks after young American writer Ashley St. Clair, 31, announced that she gave birth to a child for the Tesla boss five months ago.
However, the businessman born in 1971 did not admit to this child, even implying that he had been trapped by Ms. Clair. This attitude led to the female writer's lawsuit on February 21.
If including the baby of Ms. Ashley St. Clair, billionaire Elon Musk currently has a total of 14 children whose biological parents have been made public, including: 6 children with his first wife Justine Wilson: first son of Nevada (deceased), twin couple Vivian and Griffin, biological father Kai, Saxon and Damian.
The three children of singer Grimes include: son X AE A-XI - nicknamed X, daughter Exa Dark Sideræl Musk - nicknamed Y, son of Techno Mechanicus.
The 4 children of Neuralink director Shivon Zilis include: twin brothers Strider - Azure, Arcadia girl and Seldon Lycurgus boy.
The child was born to writer Ashley St. Clair was born with a boy named RSC.
Elon Musk is a South African-American businessman, engineer and billionaire. He is best known as the CEO of Tesla, SpaceX, the X network (formerly Twitter) and many other technology companies.
Elon Musk is currently a close advisor to US President Donald Trump, serving as head of the US Department of Government Efficiency (DOGE) - a new organization established to streamline the US government apparatus.
