Metr recently published a paper about the impact AI tools have on open-source developer productivity1. They show that when open source developers working in codebases that they are deeply familiar with use AI tools to complete a task, then they take longer to complete that task compared to other tasks where they are barred from using AI tools. Interestingly the developers predict that AI will make them faster, and continue to believe that it did make them faster, even after completing the task slower than they otherwise would!
