---
title: "Elon Musk and Grimes Just Updated Their Baby’s Name"
description: "According to comments made on a recent Instagram post, Grimes revealed that her and Elon Musk's baby's name was updated from \"X Æ A-12\" to \"X Æ A-Xii.\""
date: "2020-05-26"
modified: "2020-05-26"
authors:
  - name: "Victor Tangermann"
    job_title: "Senior Editor"
    link: "https://futurism.com/authors/victor"
url: "https://futurism.com/the-byte/elon-musk-grimes-updated-babys-name"
categories:
  - "Elon Musk"
  - "Future Society"
  - "The Industrialists"
tags:
  - "elon musk"
  - "grimes"
  - "the digest"
---

# Elon Musk and Grimes Just Updated Their Baby’s Name

![According to comments made on a recent Instagram post, Grimes revealed that her and Elon Musk's baby's name was updated from "X Æ A-12" to "X Æ A-Xii."](<https://futurism.com/wp-content/uploads/2020/05/elon-musk-grimes-updated-babys-name.jpg>)
*\<em\>Image: Elon Musk via Twitter\</em\>*

## What's In a Name?

"X Æ A-12 Musk" doesn't exactly roll of the tongue — but that's the name SpaceX CEO Elon Musk and musician Claire “Grimes” Boucher [gave their newborn baby](<https://futurism.com/the-byte/elon-musk-grimes-baby-name-claim>) earlier this month.

Now, according to comments by Grimes on a [recent Instagram post](<https://www.instagram.com/p/CAlmYlknL4E/>), the couple has updated the name to "X Æ A-Xii."

"Roman numerals," she wrote in a comment reply. "Looks better \[to be honest\]."

## Like the Romans

The software-style baby name patch might also be a response to [California law](<https://futurism.com/the-byte/elon-musk-strange-baby-name-illegal>), as it includes a bunch of characters and numerals that aren't part of the standard 26-letter English alphabet and likely won't fly with authorities.

Grimes further clarified that "one dash is allowed" in a separate reply, likely referring to the fact that hyphenated names are technically legal as family names in California.

## Enter Name Here

But where that leaves the "Æ" symbol is still unclear.

In case you're curious about the original meaning of the baby's name, here’s a [confusing explanation](<https://twitter.com/Grimezsz/status/1257836061520101377>) courtesy of Grimes: “X” represents an “unknown variable.” “Æ” is Grimes’ “elven spelling of Ai.” And “A-12” is =the couple’s “favorite aircraft.”

**READ MORE:** [Grimes says she and Elon Musk have tweaked their baby's name](<https://www.cbsnews.com/news/elon-musk-grimes-baby-name-changed-x-ae-a-12-newborn-son/>) \[*CBS*\]

**More on the name:** *[ELON MUSK’S STRANGE BABY NAME MAY BE ILLEGAL](<https://futurism.com/the-byte/elon-musk-strange-baby-name-illegal>)*

## Author
I've been at Futurism since 2017, where my role has evolved to encompass design, writing, and increasingly editing. I've always been fascinated by space exploration and advanced transportation, which I've leaned into by interviewing luminaries in those fields while closely following the dimensions of policy and regulation that allow next-generation projects to succeed -- or, sometimes, to fail. I'm also keenly interested in the effects of generative AI on society, policies, and democratic institutions, as well as clean energy, physics and biology, and the vagaries of tech leadership. My work for Futurism has been cited by publications including Ars Technica, Gizmodo, PC Magazine, Jalopnik, Fox News, and the New York Post. I spent my childhood living in locations including Manila, the Philippines, and Geneva, Switzerland, attended McGill University, and now live in Toronto, Canada. Before Futurism I worked at AskMen and a small photography studio. In my free time, I'm an avid gardener, foodie, and craft beer lover, as well as a maker of artisanal hot pepper sauces. I have a magnificent dog named Freida.

### Author social links  
[Bluesky](<https://bsky.app/profile/vtanger.bsky.social>)