SlopShape: Identifying AI-Generated Commercial Web Content
Summary
The arXiv paper SlopShape: Identifying AI-Generated Commercial Web Content investigates whether AI-generated text can be detected from structural signatures rather than content alone. It uses a 214-feature instrument applied by an LLM to 2,250 human posts and 11,250 AI-generated posts, achieving 98.0 macro-F1 on held-out data and remaining robust under rewording. The authors release the pipeline, instruments, prompts, code, and artifacts, extending prior work on structure-based detection to commercial content.