Karpathy: 'Personal update: I've joined Anthropic.'
Andrej Karpathy @karpathy · x · 2026-05-19 · ★★★ · archived
First-hand announcement of the most visible AI talent move of spring 2026; ~28M views, ~149K likes (fxtwitter, Oct 4, 2026).
Summary
Karpathy announced he had joined Anthropic to "get back to R&D", calling the next few years at the LLM frontier "especially formative", and said he would return to education work (Eureka Labs) in time. Anthropic told TechCrunch he works on pre-training under Nick Joseph and will build a team using Claude to accelerate pre-training research.
Archived text
Personal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. 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.
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Archived 2026-10-04 via syndication.
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Related events
- Andrej Karpathy joins Anthropic's pre-training team to use Claude to speed up pre-training research 2026-05-19
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