
Andrej Karpathy, the AI researcher who co-founded OpenAI and previously led AI at Tesla, has joined Anthropic’s pre‑training team to work on the large-scale training runs that form Claude’s core knowledge and capabilities. New reporting confirms the move and heightens the technical arms race with OpenAI. His hire directly supports product efforts like Claude Code Channels and arrives amid recent operational and leakage challenges at Anthropic.
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