Scale AI co-founder Alexandr Wang is such an enthusiastic networker that his former roommate — OpenAI Chief Executive Officer Sam Altman — once jokingly told him to tone it down a bit.Fortunately for Wang,

Alexandr Wang, co-founder and CEO of Scale AI, told employees Thursday he is stepping down to join Meta Platforms, confirming his exit just days after Meta acquired a 49% stake in the company through a $14.

Data-labeling firm Scale AI confirmed on Friday that it has received a "significant" investment from Meta that values the startup at $29 billion.