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'The Karpathy Loop' Named: 700 Experiments in 48 Hours — Shopify CEO Ran It Overnight and Got 19% Model Performance Gain
Fortune's March 17 profile of Karpathy's autoresearch now has a named concept: 'The Karpathy Loop.' The autonomous agent ran 700 experiments over two days, discovering 20 training optimizations — when Karpathy applied them to a larger model, he got 11% training speed improvement. Shopify CEO Tobi Lütke independently ran autoresearch overnight on internal company data and posted that it ran 37 experiments and delivered a 19% performance gain, providing the first major CEO third-party validation.
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