Simon Willison’s Weblog

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17th July 2026

Tool LLM cliché highlighter — View Mozilla Bugzilla bug reports and analyze text for clichéd phrases commonly found in language model outputs. Paste text into the analyzer or load it from a URL via the Jina Reader proxy to identify matches including "no X, no Y" chains, "sit with that," "you already know," and patterns from Wikipedia's Signs of AI writing guide.

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.

Screenshot of a text-analysis web tool. Top summary row: "2 matches", "1 flagged sentence", "0 chain items". Below, a collapsed "▶ Patterns · all 11 on" panel, then a URL input reading "https://example.com/article — fetched via r.jina.ai" with a "Load URL" button. A text area contains "That loss is real and it's worth naming". Below are "Load example" and "Clear" buttons and a checked checkbox "Show just the highlights". A "Highlighted text" section shows "That loss is real and it's worth naming" with "That loss" in pale yellow (flagged sentence) and "is real and" plus "'s worth naming" in darker yellow (pattern match). Legend: "flagged sentence", "pattern match", "3 chain item count". "Matches" section: 1. "is real and" — "Is real … and / not"; 2. "'s worth naming" — "Worth naming".

Posted 17th July 2026 at 12:11 pm

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