Elon Musk, the chief executive of Twitter and Tesla, and other tech leaders have criticized an “out-of-control race” to develop more advanced artificial intelligence.

More than 1,000 technology leaders and researchers, including Elon Musk, have urged artificial intelligence labs to pause development of the most advanced systems, warning in an open letter that A.I. tools present “profound risks to society and humanity.”

The open letter called for a pause in the development of A.I. systems more powerful than GPT-4, the chatbot introduced this month by the research lab OpenAI, which Mr. Musk co-founded. The pause would provide time to introduce “shared safety protocols” for A.I. systems, the letter said. “If such a pause cannot be enacted quickly, governments should step in and institute a moratorium,” it added.

Mr. Musk was a co-founder of OpenAI - though he resigned from the board of the organisation some years ago and has tweeted critically about its current direction.

For years, many A.I. researchers, academics and tech executives, including Mr. Musk, have worried that A.I. systems could cause even greater harm. Some are part of a vast online community called rationalists or effective altruists who believe that A.I could eventually destroy humanity.

Others who signed the letter include Steve Wozniak, a co-founder of Apple; Andrew Yang, an entrepreneur and a 2020 presidential candidate; and Rachel Bronson, the president of the Bulletin of the Atomic Scientists, which sets the Doomsday Clock.

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