EU lawmakers urged world leaders on Monday to hold a summit to find ways to control the development of advanced artificial intelligence systems such as ChatGPT, saying they were developing faster than expected.

The 12 MEPs, all working on EU legislation on the technology, called on US President Joe Biden and European Commission President Ursula von der Leyen to convene the meeting and said AI firms should be more responsible.

The statement came weeks after Twitter owner Elon Musk and more than 1,000 technology figures demanded a six-month pause in the development of systems more powerful than Microsoft-backed OpenAI’s latest iteration of ChatGPT, which can mimic humans and create text and images based on prompts.

That open letter, published in March by the Future of Life Institute (FLI), had warned that AI could spread misinformation at an unprecedented rate and that machines could “outnumber, outsmart, obsolete and replace” humans if left unchecked.

The MEPS said they disagreed with some of the FLI message’s “more alarmist statements”.

“We are nevertheless in agreement with the letter’s core message: with the rapid evolution of powerful AI, we see the need for significant political action,” they added.