Comment on: Show HN: We fingerprinted 178 AI models' writing styles and similarity clusters

It would be shocking to me if the large model trainers didn't have tools like this to analyze their outputs, but this is interesting work!You can see who likely (post)trained/distilled their models or borrowed parameters from each other. I do wonder if the 32 dimensions were chosen/named from principal components or pre-selected and designed, but the tool seems like an effective discriminator in any case.Were the prompts similarly selected for orthogonality? I've wondered how the different LLMs would respond from iterative zero-shot prompt_n generation by summary from a previous response_n to generate zero-shot response_n+1. Would it statistically converge to a more distinguishable prompt for that LLM?