Don't you run into it sometimes outputting a few Chinese characters, or Cyrillic, for no apparent reason? I fear it writing some nonsense in the code or the terminal. DeepSeek V4.1 Flash doesn't seem to do that.
To be fair even OpenAI's and, to a lesser extent, Anthropic's models do that sometimes
That hasn't happened with GLM 5.3 yet but with DS 4.1 Flash it did happen and it also had a tendency to loop.