Andrej Karpathy(@karpathy)

Congrats!! I was impressed to learn about some of the engineering wizardry (e.g. *very* low voltage ...

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Andrej Karpathy on X: "@Etched Congrats!! I was impressed to learn about some of the engineering wizardry e.g. very low...

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Andrej Karpathy on X: "@Etched Congrats!! I was impressed to learn about some of the engineering wizardry (e.g. *very* low voltage domains, cluster scale memory, ...) that goes into tokens/watt maxxing of state of the art LLMs at interactive tokens/sec/user. Esp fun and memorable is the idea that this is" / X

Andrej Karpathy

@karpathy

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@Etched

Congrats!! I was impressed to learn about some of the engineering wizardry (e.g. *very* low voltage domains, cluster scale memory, ...) that goes into tokens/watt maxxing of state of the art LLMs at interactive tokens/sec/user. Esp fun and memorable is the idea that this is engineering at the "opposite" regime to that of power transmission lines: very low voltage high current (at tiny distances) vs. very high voltage & low current (at great distances). Looking forward to more!

8:54 PM · Jun 30, 2026

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