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We conduct a randomized controlled trial to understand how early-2025 AI tools affect the productivity of experienced open-source developers working on their own repositories. Surprisingly, we find that when developers use AI tools, they take 19% longer than without—AI makes them slower.
Recent Stories
Jan 19, 2026
App Store apps are exposing data from millions of users
An effort led by security research lab CovertLabs is actively uncovering troves of (mostly) AI-related apps that leak and expose user data.
Jan 19, 2026Stop ignoring AI risks in finance, MPs tell BoE and FCA
Treasury committee urges regulators and Treasury to take more ‘proactive’ approach
Jan 19, 2026OpenAI CFO Friar: 2026 is year for ‘practical adoption’ of AI
OpenAI CFO Sarah Friar said the company is focused on "practical adoption" in 2026, especially in health, science, and enterprise.