---
title: "OpenAI co-founder Andrej Karpathy joins Anthropic"
slug: "openai-co-founder-andrej-karpathy-joins-anthropic"
date: 2026-05-19
category: tech
tags: [openai, anthropic]
language: en
sources_count: 3
featured: false
publisher: AInauten News
url: https://news.ainauten.com/en/story/openai-co-founder-andrej-karpathy-joins-anthropic
---

# OpenAI co-founder Andrej Karpathy joins Anthropic

**Published**: 2026-05-19 | **Category**: tech | **Sources**: 3

---

## TL;DR

Andrej Karpathy, one of the best-known AI researchers in the world and a founding member of OpenAI, is joining rival lab Anthropic.

---

## Summary

Andrej Karpathy, one of the best-known AI researchers in the world and a founding member of OpenAI, is joining rival lab Anthropic. He starts this week on the pre-training team responsible for the massive training runs behind Claude, and will help launch a new team that uses Claude itself to accelerate pretraining research. The hire is a major coup for Anthropic in the high-stakes race for elite AI talent.

---

## Why it matters

Andrej Karpathy, one of the best-known AI researchers in the world and a founding member of OpenAI, is joining rival lab Anthropic.

---

## Key Points

- Andrej Karpathy, one of the best-known AI researchers in the world and a founding member of OpenAI, is joining rival lab Anthropic.
- He starts this week on the pre-training team responsible for the massive training runs behind Claude, and will help launch a new team that uses Claude itself to accelerate pretraining research.
- The hire is a major coup for Anthropic in the high-stakes race for elite AI talent.

---

## Nauti's Take

For Anthropic, Karpathy is a statement hire — if anyone can speed up pre-training using Claude itself, it is him. The flip side is that the talent war keeps pushing pay packages into a range only a handful of labs can match, concentrating frontier know-how at very few vendors. Builders should take Anthropic even more seriously on the technical side now, and hedge platform risk with multi-provider setups in parallel.

---


## FAQ

**Q:** What is OpenAI co-founder Andrej Karpathy joins Anthropic about?

**A:** Andrej Karpathy, one of the best-known AI researchers in the world and a founding member of OpenAI, is joining rival lab Anthropic.

**Q:** Why does it matter?

**A:** Andrej Karpathy, one of the best-known AI researchers in the world and a founding member of OpenAI, is joining rival lab Anthropic.

**Q:** What are the key takeaways?

**A:** Andrej Karpathy, one of the best-known AI researchers in the world and a founding member of OpenAI, is joining rival lab Anthropic.. He starts this week on the pre-training team responsible for the massive training runs behind Claude, and will help launch a new team that uses Claude itself to accelerate pretraining research.. The hire is a major coup for Anthropic in the high-stakes race for elite AI talent.

---

## Related Topics

- [openai](https://news.ainauten.com/en/tag/openai)
- [anthropic](https://news.ainauten.com/en/tag/anthropic)

---

## Sources

- [OpenAI co-founder Andrej Karpathy joins Anthropic](https://www.axios.com/2026/05/19/anthropic-openai-karpathy-andrej-claude) - Axios AI
- ["Transformative Jahre" voraus: Ex-OpenAI-Forscher Andrej Karpathy schließt sich Anthropic an](https://the-decoder.de/transformative-jahre-voraus-ex-openai-forscher-andrej-karpathy-schliesst-sich-anthropic-an/) - THE DECODER
- [Andrej Karpathy Picks Anthropic Over OpenAI : Here’s Why It Matters for Claude](https://www.geeky-gadgets.com/what-karpathy-means-for-claude/) - Geeky Gadgets AI

---

## About This Article

This article is a synthesis of 3 sources, curated and summarized by AInauten News. We aggregate AI news from trusted sources and provide bilingual (German/English) coverage.

**Publisher**: [AInauten](https://www.ainauten.com) | **Site**: [news.ainauten.com](https://news.ainauten.com)

---

*Last Updated: 2026-05-20*