Andrej Karpathy, a founding member of OpenAI and former AI leader at Tesla, announces that he is joining rival AI lab Anthropic. Multiple outlets report the move as a significant hire as competition for senior AI talent intensifies among major large language model developers. Karpathy says he will start this week at Anthropic on the pre-training team, which is responsible for large-scale training runs that contribute to Claude’s core capabilities.
According to Anthropic, his role also includes helping launch a new effort aimed at using Claude itself to speed up pre-training research. The focus reflects a broader trend in the industry toward automating parts of AI development. Outlets also describe Karpathy’s prior career, including co-founding OpenAI, later serving in a Tesla leadership role overseeing computer vision work associated with Autopilot, and returning to research-oriented work. Karpathy characterizes his decision as a return to R&D, and shares commentary about frontier large language model development on social media alongside his announcement.