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Harvard's field data on coding agents: +30% code, +49% review time, flat output

This story is from 2026-10-17. It is preserved in the archive; the latest stories are on the live feed.

A 78-page job market paper landed last week that puts field numbers on the argument everyone has been having from vibes. Fiona Chen and James Stratton at Harvard wrote it using a proprietary dataset from the engineering analytics platform Jellyfish, and the abstract states the finding flatly: both…

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  1. 2026-10-17 00:15 · DEV Community — AI
    Harvard's field data on coding agents: +30% code, +49% review time, flat output

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