Andrej Karpathy, the 39-year-old AI researcher, educator and OpenAI founding member is back in headlines after announcing that he has joined Anthropic, one of OpenAI’s biggest rivals in the rapidly escalating AI race.
In the world of artificial intelligence, there are famous CEOs — and then there are the people quietly shaping the technology behind the scenes.
Karpathy belongs firmly in the second category.
“Personal update: I've joined Anthropic,” Karpathy wrote on X on Tuesday. “I think the next few years at the frontier of LLMs will be especially formative.”
Anthropic later confirmed that he would join its pretraining team — the group responsible for large-scale testing and development of Claude, the company’s AI model.
