President Trump and the leaders of the country's largest artificial intelligence companies have signed a set of voluntary safety standards, as calls mount for tighter guardrails on powerful AI technology. "It's almost like a Constitution in a way, and the biggest people in the world signed that and I signed it as president and it really is a form of protection," Trump told reporters after the meeting. Key points and original sources are listed below.

• President Trump and the leaders of the country's largest artificial intelligence companies have signed a set of voluntary safety standards, as calls mount for tighter guardrails on powerful AI technology.S1

• "It's almost like a Constitution in a way, and the biggest people in the world signed that and I signed it as president and it really is a form of protection," Trump told reporters after the meeting.S2