Jared Bauer summarizes results of a study I suggested this spring. 202 developers were randomly assigned GitHub Copilot, while the others were instructed not to use AI tools. The participants were asked to complete a coding task. Developers with GitHub Copilot had 56% greater likelihood of passing all unit tests. Other developers evaluated code to assess quality and readability. Code from developers with GitHub Copilot was rated better on readability, maintainability, and conciseness. All these differences were statistically significant.