> I pored over every single line of code Claude generated with razor sharp scrutiny.

That is essentially impossible, since if your pored over individual lines, your scrutiny cannot be razor sharp. There are few people who can pore over code with razor-sharp scrutiny (and different people are better at scrutinizing different aspects).

> Even back in March, you could tell it "give me a function that adds two numbers" and you could be 100% confident that it would write the correct function.

I am doubtful that this is the case. Even that supposedly-naive example is not as trivial as you might imagine, when you consider overflow, defined vs undefined behavior, and floating-point representation details. And you can't be confident like that about a human either.