The Bloomberg Billionaires Index estimated Ilya Sutskever's net worth at $13.8 billion in a profile dated 27 July 2026. The estimate includes a $7 billion OpenAI stake that he testified to in the Musk v. Altman trial, plus a $6.75 billion holding in Safe Superintelligence.
He co-founded OpenAI at the end of 2015 as chief scientist and left in May 2024. SSI was announced on 19 June 2024 and raised $1 billion in September 2024 at about $5 billion.
A round led by Greenoaks in 2025 valued SSI at about $30 billion, though some reports said $32 billion. The company has no product and reported no revenue as of March 2025. On 27 July 2026 it announced a partnership with Nvidia, with a reported $5 billion investment whose terms were not disclosed.
Both holdings are private, so the figure depends on how Bloomberg values them against the latest rounds.