Anthropic has disrupted several attempts to use its artificial intelligence models for research that could help develop biological weapons, the United States technology company has reported.

Anthropic said evaluations of its older models last year found they could not meaningfully assist dangerous biological research, but newer models can complete complex scientific work.

Two days before the report, a researcher quit Anthropic, saying the race to develop AI could wipe out humanity.

Speaking to reporters, Trump said he is concerned that the US will be in a “very bad position” if it does not lead the AI race.

Asked if he has concerns that AI could lead to human extinction, he said: “No, I don’t have any.”