Dunno, maybe I'm good at prompting it, but I haven't had many issues with GLM-5.3 Flash. After switching from the Claude models, I barely noticed any difference for most tasks. In fact, I have to recheck the settings from time to time to make sure I'm not running anything Anthropic when I see it working with sensitive data :)

The only annoying issue for me is that GLM-5.3 Flash is often eager to go into action and start modifying code when I've just asked a question and it misunderstood it as a call to action.