After 14 months, the U.K.’s Competition and Markets Authority concluded the Microsoft-OpenAI deal does not warrant a full investigation under U.K. merger rules.

Looking at the evidence in the round (including the recent changes), we have found that there has not been a change of control by Microsoft from material influence to de facto control over OpenAI'

The U.K.'s competition authority says Microsoft's OpenAI partnership doesn't qualify for investigation under the country's anticompetitive practices law.