What Andrej Karpathy thinks about ideas vs execution

@andrej-karpathy · 69 positions · On ppll ↗

Founding member of OpenAI and former director of AI at Tesla; creator of nanoGPT and the term "vibe coding".

Andrej Karpathy did not write this page.

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1 dated position, 2025, in their own words. Our reading of what Andrej Karpathy has said — not written or endorsed by them.

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1. 17 Oct 2025

   Our readingYou only really know something once you have built it — blog posts and slides leave gaps that building the thing does not.

   Their wordsSo, don't write blog posts, don't do slides, don't do any of that. Like, build the code, arrange it, get it to work. It's the only way to go. Otherwise, you're missing knowledge.

   ↗Andrej Karpathy — “We’re summoning ghosts, not building animals”youtube.com 9th of 30 in this recording