Show HN: We fingerprinted 178 AI models’ writing styles and similarity clusters

via news.ycombinator.com

Short excerpt below. Read at the original source.

We have a dataset of 3,095 standardized AI responses across 43 prompts. From each response, we extract a 32-dimension stylometric fingerprint (lexical richness, sentence structure, punctuation habits, formatting patterns, discourse markers). Some findings: – 9 clone clusters (>90% cosine similarity on z-normalized feature vectors) – Mistral Large 2 and Large 3 2512 score 84.8% on […]

Read at Source