The boss of the chipmaker Nvidia has said AI will not develop to a point that will lead to the extinction of the human race within a few years, rejecting such assertions as overblown “doomsday narratives”.

Jensen Huang, the co-founder and chief executive of the $5tn AI chipmaker, said the claims made on social media by the former Anthropic researcher Jacob Coxon that AI could become “superhuman” and kill off humanity within the decade was “irresponsible”.