Camilla Jessen
An unexpected social media post from Elon Musk has reignited public attention around his expanding family life.
Reports emerged in 2025 that Musk had welcomed another child, his 13th, with Ashley St. Clair. The baby is believed to have been born in September 2024, though St. Clair did not publicly confirm Musk as the father until months later.
When the claims surfaced, Musk publicly questioned paternity.
“I don’t know if the child is mine or not, but am not against finding out,” he wrote at the time, adding that he had already given St. Clair $2.5 million and was providing $500,000 a year in support.
St. Clair responded by saying she had asked Musk to take a paternity test, but alleged he refused.
Test results surface
In April, the Wall Street Journal reported that it had reviewed receipts between Musk and St. Clair, including the results of a paternity test.
According to the outlet, the test showed a 99.9999 percent probability that Musk is the child’s father.
Neither Musk nor St. Clair publicly commented on the report at the time.
Custody announcement
On January 12, Musk appeared to confirm paternity indirectly by announcing plans to seek custody.
Writing on X he said: “I will be filing for full custody today, given her statements implying she might transition a one-year-old boy.”
The comment marked the first time Musk publicly stated an intention to pursue full custody of the child.
Online backlash context
Musk’s statement followed a separate online exchange involving St. Clair, who has previously been associated with right-wing activism. Responding to criticism over past transphobic remarks, she expressed regret and said she was trying to learn and advocate for the trans community.
“I feel immense guilt for my role,” she wrote, adding that she was sorry for harm caused by her earlier comments.
In her posts, St. Clair did not mention transitioning the child. That discrepancy has fueled further debate online.
Questions unanswered
Neither Musk nor St. Clair has elaborated on the custody claim beyond the initial posts. Both have been contacted for comment by multiple outlets, but no further statements have been issued.
