capital · May 22, 2026
OpenAI Co-Founder Andrej Karpathy Joins Anthropic Pre-Training Team
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Andrej Karpathy, OpenAI co-founder and former Tesla AI director, joined Anthropic on May 19, 2026, and started work that week on the pre-training team. He will build a new team using Claude to accelerate pretraining research for future Claude models. Karpathy stated he is excited to return to R&D at the LLM frontier after leaving Tesla in 2022 and founding Eureka Labs. The hire marks Anthropic's latest high-profile talent acquisition amid competition with OpenAI.
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