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Andrej Karpathy, a co-founder of OpenAI and former director of AI at Tesla $TSLA -1.43%, has joined Anthropic, he announced on Tuesday.
"I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative," Karpathy wrote on X $TWTR 0.00%. "I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time."
Karpathy started this week on Anthropic's pretraining team, which handles the large-scale training runs that give the company's Claude models their core knowledge and capabilities, according to TechCrunch. The team is led by Nicholas Joseph, another former OpenAI employee and an early Anthropic hire. Anthropic said Karpathy will build out a group focused on using Claude to accelerate pretraining research itself.
Joseph welcomed the hire on X. "Excited to welcome Andrej to the Pretraining team! He'll be building a team focused on using Claude to accelerate pretraining research itself. I can't think of anyone better suited to do it," he wrote.










