One of the incidents even triggered an antitrust investigation in the UK. However, the UK competition has dropped the probe against OpenAI. The investigation by the UK’s Competition and Markets Authority (CMA) wanted to dig deeper into whether there was any change in the relationship between Microsoft and OpenAI.

The UK competition watchdog has ended its investigation into the partnership between Microsoft and the maker of ChatGPT, OpenAI. The Competition and Markets Authority (CMA) was looking into whether Microsoft's relationship with what is the world's best known artificial intelligence (AI) firm changed after the turmoil which saw its boss Sam Altman fired and then rehired.

Britain's competition watchdog said Wednesday it has dropped its review of Microsoft's partnership with OpenAI, saying it's satisfied that the deal doesn't need a closer investigation under the country's merger rules.