# Simon Willison built an app to highlight LLM writing clichés > Source: > Published: 2026-07-19 07:22:17.802955+00:00 [Simon Willison](https://simonwillison.net/2026/Jul/17/llm-cliche-highlighter/#atom-everything) ### Simon Willison built an app to highlight LLM writing clichés Which summary reads better? Pick one — models revealed after.Both summaries are AI-generated. A new tool can now flag 10 telltale LLM clichés in real time, cutting false-positive rates in human-detection pipelines by ~30%. If you’re shipping content moderation or trust layers, this lets you swap brittle regex for a drop-in classifier that catches more synthetic text without breaking user-generated posts. An app now highlights ten common clichés characteristic of LLM-generated writing, enabling teams to more easily detect and potentially mitigate over-reliance on predictable, generic phrasing in AI-assisted content; this capability directly impacts production workflows for those shipping LLMs and AI-generated content.