Karpathy Joins Anthropic to Resume Frontier LLM Research

*Andrej Karpathy has left his AI education startup to join Anthropic, citing the next few years of large language model development as especially formative.*

Andrej Karpathy announced the move on X. He said he is excited to re-enter research and development work at the company. Karpathy noted that he remains committed to education and expects to return to that focus later.

The announcement drew immediate attention on Hacker News, where the post reached the front page with more than 1,100 points and hundreds of comments. Observers highlighted Karpathy’s track record across multiple leading AI organizations.

Career path to date

Karpathy co-founded OpenAI in 2015. He later served as director of AI at Tesla from 2017 to 2022, reporting directly to Elon Musk. He rejoined OpenAI in 2023 before departing again in 2024 to launch Eureka Labs, an AI-focused education company. He also introduced the term “vibe coding” in early 2025.

His move to Anthropic places him at a lab that continues to compete directly with OpenAI on frontier models. The statement gives no details on specific projects or title.

Limited public reaction so far

No comments from Anthropic or OpenAI appear in the available reports. Coverage from Daring Fireball simply restated Karpathy’s own words and summarized his prior roles. Discussion threads on Hacker News focus on the implications for talent movement rather than any disclosed technical plans.

Karpathy’s decision underscores how quickly senior researchers continue to shift between the small set of organizations pushing the largest models.

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Sources:

• Hacker News (front page)
• Daring Fireball

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