Yes
The most noticeable thing is test coverage has greatly improved
fogzen on Hacker News
velocity is 10%-20% faster
In the thread “Ask HN: Has your whole engineering team gone big into AI coding? How's it going?”
Helped: AI generated tests for every PR, improving coverage.
… Objectively I have no idea if velocity is faster – because management is inept and does not actually track this. The most noticeable thing is test coverage has greatly improved. Every PR ships with lots of tests, whereas before we used AI we had little to no test coverage since it was just too time consuming.