LLM cliché highlighter
Simon Willison developed a tool to detect and highlight common clichéd phrases often found in LLM-generated text, such as 'no fluff, no filler, no jargon'. The tool runs in the browser, provides pattern counts and navigation, and aims to reduce frustration with formulaic AI writing.
Tool: LLM cliché highlighter
Simon Willison’s Weblog
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17th July 2026
Tool
LLM cliché highlighter — Detect and highlight common clichéd phrases in text that frequently appear in language model outputs. Paste text into the analyzer to identify patterns like "no X, no Y" chains, "sit with that," "you already know," and other LLM-generated expressions, with toggleable pattern detection and context-aware sentence highlighting. The tool includes pattern counts, match listings with quick navigation, and runs entirely in your browser with localStorage support for persistence.
I got frustrated reading yet another article that was crammed with the clichés of LLM-generated writing - "no fluff, no filler, no jargon" type stuff - so I had Fable 5 vibe code up this app for highlighting ten common patterns that show up in that sort of writing.
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