US President Donald Trump has downplayed the risks of AI, saying "negative forces" were "bringing up things that won't happen", after calls by industry bosses to slow down development.

Anthropic boss Dario Amodei said he was concerned that since this summer, AI has been "advancing drastically faster".

Given the rate of development, Mr Amodei is worried that within six to 12 months, AI could be capable of leading a swarm that could take over the entire internet.

The entrepreneur, whose company is behind the AI assistant Claude, shared a three-part plan for building the technology at a "balanced rate".

His essay, titled We Must Pace the Frontier, has been supported by other industry leaders, including Grok boss Elon Musk and OpenAI co-founder Sam Altman.

Elon Musk and Sam Altman have backed a call from the boss of Anthropic for the artificial intelligence (AI) industry to "slow down" to give safety measures time to catch up.