Karpathy will start this week on Anthropic's pre-training team, which is responsible for the massive training runs that give Claude its core knowledge and capabilities, according to Anthropic.

Source: https://www.axios.com/2026/05/19/anthropic-openai-karpathy-a...

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ollin 6 hours ago | parent | next [-]

Specifically it looks like he's planning to extend the ideas from https://github.com/karpathy/autoresearch into a larger effort towards recursive training improvement [1]:

> Excited to welcome Andrej to the Pretraining team! He'll be building a team focused on using Claude to accelerate pretraining research itself. I can’t think of anyone better suited to do it — looking forward to what we build together!

[1] https://x.com/nickevanjoseph/status/2056760504949842219

	▲	4 hours ago \| parent \| next [-]
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	▲	triyambakam an hour ago \| parent \| prev [-]
		I guess we must expect it at this point. But funny that has model written tokens like ’ instead of '

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the_arun 3 hours ago | parent | prev | next [-]

This is good branding move for Anthropic. Karpathy is well respected among ML crowd.

	▲	zachncst 3 hours ago \| parent [-]
		Minor celebrity fwiw - deserved though.

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ed_elliott_asc 5 hours ago | parent | prev [-]

Why do they need this when they have the next gen mythos? Surely that can manage everything?

	▲	cyanydeez 5 hours ago \| parent [-]
		You don't understand: no ones ever reading more than 1% of the training material; so they need someone who has reduced that to 0.1%. The less you know, the more you know!