OpenAI Co-Founder Andrej Karpathy Joins Anthropic to Lead AI-Assisted Pre-Training Research
19 Sources
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OpenAI co-founder Andrej Karpathy joins Anthropic's pre-training team | TechCrunch
Andrej Karpathy, the AI researcher who co-founded and formerly worked at OpenAI and previously led AI at Tesla, has joined Anthropic. "I've joined Anthropic," Karpathy posted on X Tuesday. "I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join
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Former Tesla AI executive, OpenAI founding member Andrej Karpathy joins Anthropic
May 19 (Reuters) - Former Tesla (TSLA.O), opens new tab AI executive and one of OpenAI's founding members Andrej Karpathy has joined Anthropic, he said on Tuesday. "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
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Anthropic hires OpenAI co-founder Andrej Karpathy, former Tesla AI leader
"I think the next few years at the frontier of LLMs will be especially formative," Karpathy wrote in a post on X, referring to large language models. "I am very excited to join the team here and get back to R&D." Anthropic said Karpathy starts this week and will be part of the pretraining team,
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OpenAI co-founder Karpathy joins Anthropic pre-training team
Karpathy will build a new team that uses Claude itself to accelerate the most expensive phase of frontier model development Andrej Karpathy, one of the original co-founders of OpenAI and among the most recognised AI researchers in the world, announced on Monday that he has joined Anthropic. The
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OpenAI Cofounder Andrej Karpathy Joins Anthropic as Sam Altman's Fortunes Turn
Anthropic was founded by OpenAI exiles. It's adding one more. On Tuesday, former OpenAI co-founder Andrej Karpathy announced on X that he will be joining Anthropic, seemingly to work on the lab's research and development team. "Personal update: I've joined Anthropic. I think the next few years at
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OpenAI co-founder Andrej Karpathy joins Anthropic
Why it matters: The hire is a major coup for Anthropic in the high-stakes competition for elite AI talent -- and another sign the company is emerging as a magnet for some of the industry's most respected technical minds. Driving the news: Karpathy will start this week on Anthropic's pre-training
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Influential AI researcher Andrej Karpathy announces he's joining Anthropic
Andrej Karpathy, the influential 39-year-old Slovak-Canadian AI researcher and one of the original 11 co-founders of OpenAI, and former head of Tesla's AI division, announced on Tuesday, May 19 that he's joining rival lab Anthropic. As Karpathy posted from his account on the social network X:
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Andrej Karpathy, OpenAI founding member and inventor of 'vibe coding,' defects to Anthropic | Fortune
"Personal update: I've joined Anthropic," Andrej Karpathy wrote onX on Tuesday, in a post that drew nearly 3 million views within one hour. He said the next few years at the frontier of LLMs would be "especially formative" and that he was eager to get back to research. He started this week on the
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Why OpenAI Cofounder Andrej Karpathy Just Joined Its Fiercest Rival
In a post on X, Karpathy confirmed that he had joined Anthropic, and said that "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
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Who Is Andrej Karpathy, the Renowned AI Researcher Who Joined Anthropic?
At Tesla, Karpathy shifted from radar to camera-based neural vision Andrej Karpathy, an artificial intelligence (AI) researcher and influential figure in the field, is joining Anthropic. On Tuesday, the OpenAI Co-Founder announced his decision on social media, highlighting that his role will focus
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Meet Andrej Karpathy, OpenAI founding researcher hired by rival Anthropic; His education, Tesla role and others
Andrej Karpathy, the 39-year-old AI researcher, educator and OpenAI founding member is back in headlines after announcing that he has joined Anthropic, one of OpenAI's biggest rivals in the rapidly escalating AI race. In the world of artificial intelligence, there are famous CEOs -- and then there
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Why Andrej Karpathy Chose Anthropic Over OpenAI
Andrej Karpathy, a prominent figure in artificial intelligence, has recently joined Anthropic, a company known for its focus on ethical AI development and safety. This move signals a shift in Karpathy's career toward addressing the societal implications of AI, aligning with Anthropic's mission to
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Anthropic Just Landed One Of AI's Biggest Names
Anthropic has hired Andrej Karpathy, a co-founder of OpenAI and former director of artificial intelligence and Autopilot Vision at Tesla. "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
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OpenAI cofounder Andrej Karpathy joins Anthropic - The Economic Times
Renowned AI researcher Andrej Karpathy has joined Anthropic, marking a significant talent acquisition for the AI company. Karpathy, a co-founder of OpenAI and former Director of AI at Tesla, expressed excitement about contributing to LLM research and development. He also plans to continue his work
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Andrej Karpathy Lands at Anthropic Amid AI Research Arms Race | PYMNTS.com
The move underscores how competition in AI centers not only on chips and infrastructure, but also on attracting a relatively small pool of researchers capable of pushing model performance forward. Anthropic, best known for its Claude family of models, has emerged as one of OpenAI's strongest rivals
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Andrej Karpathy Picks Anthropic Over OpenAI : Here's Why It Matters for Claude
Andrej Karpathy's decision to join Anthropic signals a pivotal moment for the AI industry, particularly for the development and application of systems like Claude. Known for his new work at OpenAI and Tesla, Karpathy brings a unique focus on context engineering and user-centric design, aligning
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Anthropic hires OpenAI co-founder Andrej Karpathy as its momentum continues to surge
Andrej Karpathy, an OpenAI co-founder and former Tesla executive, has joined Anthropic - adding to the artificial intelligence giant's surging momentum. Karpathy -- considered to be one of the world's top AI researchers -- is working on the pre-training team which is responsible for "the
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Andrej Karpathy joins Anthropic in the artificial intelligence race
Andrej Karpathy, former head of AI at Tesla and co-founder of OpenAI, has announced he is joining Anthropic, bolstering the creator of Claude in the global competition for advanced AI models. A renowned figure in the industry, Karpathy explained his desire to completely return to research and
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OpenAI co-founder Andrej Karpathy joins Anthropic
Anthropic, the company behind popular AI chatbot Claude, has just bagged its newest member. And that is none other than Andrej Karpathy, one of the co-founders of OpenAI and a former senior-level executive at Tesla. Karpathy confirmed the news in a social media post, saying that he is super
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Andrej Karpathy, the renowned AI researcher who co-founded OpenAI and led Tesla's self-driving programs, has joined Anthropic to build a new team focused on using Claude to accelerate pre-training research. The move signals a significant talent shift as Anthropic positions itself to compete with OpenAI and Google in frontier AI development.
OpenAI Co-Founder Andrej Karpathy Moves to Anthropic
Andrej Karpathy, one of the most recognized AI researchers in the field and an OpenAI co-founder, announced on Tuesday that he has joined Anthropic. The move represents a major talent acquisition for the Claude maker as competition intensifies among frontier AI labs
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. "I think the next few years at the frontier of LLMs will be especially formative," Karpathy posted on X. "I am very excited to join the team here and get back to R&D"2
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Source: Inc.
Karpathy started this week at Anthropic, where he is working on the pre-training team under team lead Nick Joseph. An Anthropic spokesperson confirmed that Karpathy will start a team focused on using Claude to accelerate pre-training research
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. This approach marks a strikingly recursive goal: leveraging the AI system itself to improve the most expensive phase of building large language models.Former Tesla AI Leader Brings Deep Technical Expertise
Karpathy's career has touched nearly every major inflection point in modern AI. The former Tesla AI leader earned his PhD at Stanford under Fei-Fei Li, focusing on deep learning and computer vision
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. While at OpenAI from 2015 to 2017, he focused on deep learning and computer vision until he departed to join Tesla, where he led the company's Full Self-Driving and Autopilot programs before leaving in 20221
.During the recent Musk v. Altman trial, which concluded on Monday with a ruling in Sam Altman's favor, Karpathy's work came up repeatedly. In one email exchange presented as evidence, Elon Musk described Karpathy as "arguably the #2 guy in the world in computer vision" when recruiting him away from OpenAI to Tesla
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.Accelerating Pretraining Research Through AI-Assisted Methods
Pre-training is responsible for the large-scale training runs that give Claude its core knowledge and capabilities. It's also one of the most expensive, compute-intensive phases of building a frontier model . Tapping Karpathy to build a team focused on this challenge signals that Anthropic believes AI-assisted research, rather than pure compute, is how it stays competitive with OpenAI and Google in frontier AI development.
Source: PYMNTS
Karpathy is one of the few researchers who can bridge the gap between LLM theory and large-scale training practice . If Claude can meaningfully speed up its own pre-training pipeline, it would mark a practical demonstration of recursive self-improvement, one of the capabilities the AI safety community has long watched closely
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.AI Talent Shift Amid Intensifying Competition
The hire comes at a moment when Anthropic has emerged as a magnet for top-tier AI talent, while OpenAI has experienced a string of high-profile departures. Over the past two years, OpenAI has lost more than a dozen senior executives and researchers, including CTO Mira Murati, reinforcement learning pioneer John Schulman, and three executives who left on a single day in April 2026
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Source: VentureBeat
It's the latest high-profile hire for Anthropic, which is poised to surpass OpenAI's private market valuation. Ross Nordeen, a founding member of xAI and an ex-Tesla employee, announced earlier this month he was joining Anthropic, the same day the company struck a deal with Elon Musk's SpaceX to rent compute capacity at xAI's Colossus 1 data center in Memphis, Tennessee
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What Happens to Eureka Labs
After leaving Tesla, Karpathy briefly returned to OpenAI for one year before leaving again in 2024 to start Eureka Labs, a startup dedicated to applying AI assistants to education
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. Karpathy hasn't shared many updates on Eureka Labs since its launch, and it's not clear if the renowned AI researcher will continue with the startup. He has also taught an online course called Neural Networks: Zero to Hero that helps students learn to build neural networks from scratch in code. "I remain deeply passionate about education and plan to resume my work on it in time," Karpathy said1
.Strengthening Anthropic's Security Capabilities
Separately, Anthropic has also brought on Chris Rohlf to its frontier red team, which stress-tests advanced AI models against severe threats. Rohlf is a veteran of the cybersecurity industry with more than 20 years of experience. He previously worked at Yahoo's well-respected cybersecurity team known as "The Paranoids," and more recently at Meta, where he worked for six years before joining Anthropic
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. "We have a real opportunity in front of us to dramatically improve cyber security with AI," Rohlf said in a post on X1
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