Dario Amodei, the leader of Anthropic, supports demands for a slowdown in AI development. A former Anthropic researcher told the BBC that AI staff are genuinely frightened for humanity's future. OpenAI's boss and Elon Musk join in backing slowing down what they call reckless AI development. US President Trump takes a different line. He says whoever wins AI wins, and downplays risks as things to be ignored.

The warnings are coming from experts and company chiefs. They are calling for care before pushing ahead. Trump's view contrasts sharply with that outlook. He argues the race for AI superiority matters more than any downsides.