France, Sept. 26 -- Donald Trump and Xi Jinping discussed matters ranging from AI and trade to the stalled war in Iran, and confirmed that they would meet for a third and fourth time this year at international summits in China and the United States.

Xi's visit to Washington was marked more by pomp than substance, but the White House said on Friday the nations agreed to establish a "bilateral communication channel" for AI incidents.

Chinese state media confirmed the AI hotline was agreed in a report about the summit's outcomes on Saturday.

While billionaire Trump has repeatedly dismissed fears that AI could pose a threat to humanity, Xi took a more measured tone, noting the technology must develop under human control.

The White House a...