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Public story · 2026-02-12 · source-backed
A complete GPT implementation (training + inference) in 243 lines — only imports are os, math, random, argparse. Karpathy: "This is the full algorithmic content. Everything else is just for efficiency. I cannot simplify this any further." A landmark educational artifact that strips the mystique from LLMs.
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Andrej Karpathy works at Anthropic / Shared entities / Shared topic / What happened next
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Andrej Karpathy uses Claude / Shared entities / Same source domain / What happened next
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Linked by a graph relationship (Andrej Karpathy uses Claude); both cover GPT, LLMs; reported by the same outlet (x.com).
Andrej Karpathy uses Claude / Shared entities / Shared topic / What happened next
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Andrej Karpathy uses Claude / Shared entities / What happened next / Tension
Linked by a graph relationship (Andrej Karpathy uses Claude); both cover Andrej Karpathy, Karpathy; picks up the Andrej Karpathy thread on 2026-04-30.
Andrej Karpathy works at Anthropic / Shared entity: Twitter / Same source domain / What happened next / Tension
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Andrej Karpathy works at Anthropic / Shared entities / What happened next
Linked by a graph relationship (Andrej Karpathy works at Anthropic); both cover GPT, Twitter; picks up the GPT thread on 2026-07-08.
Andrej Karpathy uses Claude / Shared entities / What happened next
Linked by a graph relationship (Andrej Karpathy uses Claude); both cover Andrej Karpathy, Karpathy; picks up the Andrej Karpathy thread on 2026-06-30.