Epoch AI Studies Codex's Productivity Boost
scaling01 · x · 2026-07-11
Epoch AI analyzed contributions to OpenAI's public Codex repository to estimate the impact of AI on developer efficiency. - The study used LLM review to estimate contributors' engineering effort in **Q2 2026**. - Results showed that about **8%** of contributor-days involved the equivalent of **over 24 hours** of human engineering work.
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