Today in LLM-enabled side quests: I got Claude 3.5 Sonnet to build me a web UI for visually comparing PDF files using a couple of short prompts - result is here: https://tools.simonwillison.net/compare-pdfs
Further notes (including the prompts and a link to the full Claude transcript): https://simonwillison.net/2024/Jul/2/compare-pdfs/