Talked to somebody who is really into chatbot roleplay (of the ‘longer term stories with new fantasy characters’ type), and he mentioned that he needs to take his characters stories and archetypes to different models every now and then as a sort of refresh, as the models tend to eventually converge into certain stuck patterns. First clue of this seems to be that the replies seem to start to become a similar pattern of text organization. Sorry if this is vague as it is second hand, but the main point is, text based LLMs prob also do this.