people · May 21, 2026
Andrej Karpathy Joins Anthropic as Researcher Building Team for Claude Training
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Andrej Karpathy joined Anthropic on May 19, 2026, as a researcher reporting to Nick Joseph on pre-training. He builds a team to make Claude train the next Claude using vibe coding techniques he coined in early 2025. Karpathy previously co-founded OpenAI and worked at Tesla AI; he joins Dario Amodei as CEO and Jared Kaplan as chief science officer at the lab. The move follows similar talent shifts among frontier AI companies in 2026.
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