London | San Francisco | Microsoft has given up its seat as an observer on the board of OpenAI while Apple will not take up a similar position, amid growing scrutiny by global regulators of Big Tech’s investments in AI start-ups.

Microsoft, which has invested $US13 billion ($19 billion) in the maker of the generative AI chatbot ChatGPT, said in a letter to OpenAI that its withdrawal from its board role would be “effective immediately”.

Financial Times