Kai Musk is an American-born celebrity child, who is one of the sons of the famed billionaire tech investor and business magnate, Elon Musk.

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Age, Early Life, and Education Background

Kai Musk was born in the USA under the Capricorn zodiac sign on 1 January 2006, which makes him 17 years old as of 2023. He was born to the aforementioned tech magnate, who is the CEO of Tesla, Inc. and SpaceX, and his ex-wife Justine Wilson, who is a Canadian author. Kai is one of Musk’s triplets (born together with Saxon and Damian) and his other three siblings are the twins Vivien Jenna Musk and Griffin Musk, who were born in 2004, and the late Nevada Alexander Musk, who succumbed to sudden infant death syndrome (SIDS) in 2002 when he was barely 10 weeks old. Kai’s parents divorced in September 2008, when he was two years old. His mother has revealed that he divorced Musk because their marriage was unhealthy, claiming that Musk often dismissed her career ambitions, and treated her like a trophy wife.

Kai has five half-siblings from his father’s relationship with the Canadian venture capitalist, Shivon Alice Zilis (the twins Strider and Azure, who were born through IVF) and the Canadian singer-songwriter and musician, Grimes, whose real name is Claire Elise Boucher (X Æ A-Xii, Exa Dark Sideræl Musk, and Techno Mechanicus Musk, who is Elon’s youngest son born in June 2022).

Musk was raised in a high-profile family, and so his upbringing was very different from other children’s. Instead of attending traditional schools, Kai was educated in a unique educational system, attending Astra Nova School, which was created at SpaceX by his father. The school served just 50 students, providing education and training aligned with the swiftly evolving world.

Interesting Facts

Kai and his five siblings were conceived through in vitro fertilization (IVF).

He is a huge fan of traveling, as seen on his mother’s Instagram account, and has toured numerous international destinations with his mother and siblings.


Kai is probably still attending school, and hasn’t chosen his career path. In 2010, he was featured alongside his mother in the article “Inside America’s Messiest Divorce” by the French international magazine “Marie Claire.” In 2022, he appeared in an episode of the TV series “Bild Life” as Elon Musk’s Son. His older brother, Griffin, who attended an elite private educational institution in Los Angeles, shows interest in technology and business, just like his father – the father and son duo attended the 2019 World Artificial Intelligence Conference that was held in Shanghai, China.

Personal Life

Kai is very secretive when it comes to his personal life, and hasn’t mentioned or introduced anyone as his girlfriend; he’s presumably focused on his personal growth and education. Kai’s sibling, Vivien is a transwoman who legally changed her name from Xavier Alexander Musk, and her gender from male to female. She stated that changed her name because ‘… I no longer live with or wish to be related to my biological father in any way, shape, or form.’

After Kai’s father divorced his mother – who was his first wife – he went on to marry the English actress, Talulah Riley in 2010; the couple divorced two years later, remarried in 2013, but divorced again in 2016. Riley is known for her appearances in the films “Pride & Prejudice” and the film series “St Trinian’s.” Elon and Talulah didn’t welcome any children together. Kai’s father is unmarried as of 2023. Similarly, Kai is unmarried.

Height, Weight, and Physical Appearance

Kai is of Caucasian ethnicity and has a set of brown eyes and blonde hair. He’s 5ft 2ins (1.57m) tall and weighs around 115lbs (52kgs). Kai is still developing and his body measurements ought to change any time soon.

Net Worth

Kai is a teenager and hasn’t begun his professional career, and as a result, his net worth remains unknown. On the other hand, his father is worth a whopping $225.5 billion as of 2023, rated the richest man in the world. On the other hand, Kai’s mom, Justine, is worth around $3 million.

Kai Musk’s Parents: Brief Biographies

Elon Musk

Elon Reeve Musk was born under the Cancer zodiac sign on 28 June 1971, in Pretoria, Transvaal, South Africa, and is 52 years old as of 2023. He’s the son of the Canadian former dietitian and model, Maye Musk, and the South African pilot, electromechanical engineer, sailor and property developer, Errol Musk. He is the older brother of Tosca Musk, who is a filmmaker, and Kimbal James Musk, who is an entrepreneur, chef, and restauranter. Before emigrating to Canada in 1989, Elon was briefly educated at the University of Pretoria. He later attended the Ontario-based Queen’s University and then the University of Pennsylvania, from where he graduated with a bachelor’s degree in Physics and Economics.

In 1995, Musk dropped out from the California-based Stanford University to create the software firm, Zip2 together with his brother Kimbal. In 1999, the tech firm was purchased by Compaq Computer Corporation for $307 million. Elon went on to co-found a direct bank named X.com with around $12 million of the money he had earned from the sale of Zip2. X.com merged with the software firm Confinity Inc. to form PayPal Holdings, Inc. (simply PayPal) in 2000 – in 2002, eBay bought PayPal for $1.5 billion.

In 2002, Musk used $100 million to create the spaceflight firm, SpaceX. Subsequently, he became one of the earliest investors of the electric vehicle manufacturing firm, Tesla Motors, Inc. He was shortly afterwards appointed as Tesla’s Product Architect and Chairman and later the CEO in 2008. Musk co-created the solar-energy company SolarCity (acquired by Tesla and changed its name to Tesla Energy) in 2016. He also founded the tunnel construction and infrastructure firm, The Boring Company (TBC), in 2017. Moreover, he’s the co-founder of the neurotechnology firm, Neuralink. Musk bought Twitter for about $44 billion in 2022, and rebranded the social media platform as X in 2023.

Justine Musk

Jennifer J. Musk was born under the Virgo zodiac sign on 2 September 1972, in Peterborough, Ontario, and is 51 years old as of 2023. She graduated with a bachelor’s degree in English literature from the Kingston, Ontario-based Queen’s University, after which she relocated to Japan and began a career as a teacher of English as a second language. Justine later relocated and settled in California.

Justine is the writer of the 2005 contemporary fantasy book “Blood Angel.” In 2007, she released her second novel “Uninvited” and in the year that followed, she released “Blood Angel”’s sequel, “Lord of Bones.” In a previous interview, Kai’s mom identified the authors Margaret Atwood, Paul Theroux, Guy Gavriel Kay and Joyce Carol Oates as her greatest inspirations.

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