The European Commission said on Tuesday it's mulling over whether the partnership could be reviewed under EU merger regulations:
"We are inviting businesses and experts to tell us about any competition issues that they may perceive in these industries, whilst also closely monitoring AI partnerships to ensure they do not unduly distort market dynamics," Executive Vice-President and Commissioner for Competition Margrethe Vestager wrote in a statement.
If Microsoft and OpenAI are found to be in breach of the bloc's merger rules, Vestager could launch a full-scale investigation.