Andrej Karpathy, the AI researcher who co-founded OpenAI and previously led Tesla's FSD and Autopilot programs, has joined Anthropic to work on pre-training under team lead Nick Joseph. He will build a team focused on using Claude to accelerate pre-training research — a signal that Anthropic is betting on AI-assisted research as a competitive strategy against OpenAI and Google. Separately, cybersecurity veteran Chris Rohlf has joined Anthropic's frontier red team to stress-test advanced AI models against severe threats.
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