Pakistan, July 11 -- SAN FRANCISCO - A new study by the AI research group METR has revealed that advanced AI coding tools may actually slow down experienced software developers, especially when working on familiar projects.

The research involved developers using Cursor, a widely used AI coding assistant, to complete tasks within open-source projects they already knew well. The developers had initially expected a 24% decrease in task time by using AI.

However, the study found the opposite. Developers took 19% more time to finish their tasks when using AI tools. Interestingly, despite the slowdown, many still believed that AI had made them faster-estimating a 20% time reduction.

Lead researchers Joel Becker and Nate Rush expressed surpri...