Lots of examples, sketches, and revisions, especially for the favorite model mentioned:
“Opus 5.5’s initial draft was the best, so I gave it the most feedback”
This shows that an experienced person is still needed:
“With the right guidance, Opus 5.5 is arguably better than the low end of the human market.”
Furthermore, the same problems arise as in software development:
“And, even after my redlines, the details contain some subtle errors that wouldn’t be made by a skilled architect with experience in this type of construction.”
And later:
“more than 15,000 lines of Python code”
as well as
“it took Opus 5.5 twelve hours to draft the house set, and the compute cost a few hundred dollars.”
The exact costs would have been interesting to know, since it’s safe to assume that prices will continue to rise (and must), which makes the comparison with a human interesting again—one who, in the end, will be needed once more.