Karpathy’s Anthropic is the only lab he works at that skipped the open-source AI letter
jeremyphoward · x · 2026-07-26
A repost jokes that Anthropic is now the only lab Karpathy works at that did not sign the open-source AI letter, while OpenAI did sign it.
The post is mostly industry banter, but it also points to a real split in how frontier labs are positioning themselves on open-source AI.
Related event: AI Community Mocks Major Lab for Never Open-Sourcing Models(4 posts)→
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