Right, and even if GPT-3 could summarize the thousand-line diff in a sensible way, without introducing any falsehoods, it would still be strictly worse than the developer writing a sentence explaining what they think they've accomplished with the commit.
It's just the same thing as with comments and "self-documenting code". The code tells you what (and if written carefully, it may be even somewhat effective at it). It can't tell you why. Neither can a GPT-3 summary of it.
It's just the same thing as with comments and "self-documenting code". The code tells you what (and if written carefully, it may be even somewhat effective at it). It can't tell you why. Neither can a GPT-3 summary of it.