METR introduces a new metric to calculate exactly when AI agents become more expensive than humans

https://the-decoder.com/wp-content/uploads/2026/07/METR-Expenditure-Horizon-1.png" style="height: auto; margin-bottom: 10px;" width="1376" />

METR's new metric, the "expenditure horizon," puts a dollar figure on how cost-effective AI agents are at solving problems.

Early results on the NanoGPT speedrun are underwhelming, the metric has blind spots, and the newest generation of models could change the picture.

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