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).