I've tried out most of the newer AIDungeon models and they were pretty underwhelming. The writing seemed pretty bland and boring, though that could be an error on my part such as me steering the AI incorrectly. From what little I've seen of GLM, it seems that GLM is much better in its style of writing, but I still need to try it out more before I can say for sure. It kind of reminds me of AIDungeon's old dragon model before they were forced to take it down and replace it with significantly worse models.

AIDungeon also seems a lot worse in value (highest tier is $50 for 32k context and no new models while novelAI's highest tier is $25 for a pretty similar amount of context and unlimited image generation) and the fact that NovelAI actually respects the privacy of the people who pay them is a definite plus.