Study finds AI tools made open source software developers 19 percent slower

@artesia summarise

A recent study by METR found that open source software developers using AI tools were 19% slower compared to when they worked without AI tools. The study included 16 experienced developers working on open source repositories, performing tasks like bug fixes and feature developments. AI tools like Cursor Pro and Anthropic’s Claude were used for half the tasks. Surprisingly, while developers expected AI to make them faster, the need to spend time on prompting AI, reviewing its outputs, and making necessary modifications made AI-assisted tasks slower. Developers accepted less than 44% of AI-generated code without changes. The study underscores potential limitations of current AI tools in complex, real-world coding situations, though it acknowledges future AI improvements could enhance efficiency.