Personally I find this shocking. I don't think our application is that complicated, (typescript full stack graphql reactnative etc) but deepseek 4.1 flash is a bumbling fool, junior-level at best, who takes a very long time to make a very big mess. Opus 5.5 one shots truly impressive code in 5 minutes, while deepseek 4.1 flash takes 20 minutes to do horribly. I simply don't understand how folks claim they get good engineering out of it. Maybe we still care enough about the fundamentals to notice the mess ...