Kappa Sigma himself denied the resignation from Anthropic: Online rumors are false news.

According to Dynamic Beating monitoring, Andrej Karpathy, co-founder of OpenAI and current member of the Anthropic pre-training team, sparked speculation of leaving his position after removing his Anthropic affiliation from his X profile, only 68 days after joining.

Faced with direct inquiries from netizens, he responded that this was a "strange erroneous piece of information" circulating on X, and explicitly stated that he has not resigned.