Really, even after a LLM has gone through a review and fixed issues found? I almost never see anything relevant since around Opus 5 came out, and now with Fable and Opus 5.5 whatever I think is wrong is almost certainly right.

On my small personal projects I seldom find any mistakes. I use Chinese models on those. GLM, DeepSeek, MiMo.

At work I use Claude, but it is a considerably larger and quite complex codebase. I use LLMs a lot, but it is a common weekly occurrence for me to correct misconceptions, bugs, or overengineering from Opus/Sonnet (Opus plans and reviews, Sonnet implements).