OpenAI’s drama last year caught the attention of government regulators on both sides of the Atlantic. More specially, Microsoft’s $13 billion investment in the Sam Altman-led chatbot company is under intense scrutiny by European regulators. 

The European Commission said on Tuesday it’s mulling over whether the partnership could be reviewed under EU merger regulations:

If Microsoft and OpenAI are found to be in breach of the bloc’s merger rules, Vestager could launch a full-scale investigation.  

The EU’s action follows a similar move by the United Kingdom’s Competition and Markets Authority (CMA) in early December. The CMA said it’s weighing “recent developments,” referring to the Altman-Microsoft drama. 

In the US, the Federal Trade Commission recently said it would examine if Microsoft’s investment in OpenAI violates US antitrust laws. 

Early last year, FTC Chair Lina Khan penned an op-ed in The New York Times that explained: 

Back to the EU Commission, which gives Microsoft and OpenAI until March 11 to comment on how its AI impacts market competition.