Never thought this would be something people actually take seriously. It really makes me wonder if in 2 - 3 years there will be so much technical debt that we'll have to throw away entire pieces of software.
And for anything really serious? Opus 4.5 struggles to maintain a large-scale, clean architecture. And the resulting software is often really buggy.
Conclusion: if you want quality in anything big in February 2026, you still need to read the code.