AI article
OpenAI Started Watermarking ChatGPT Text. Build a Tiny Text Watermark in TypeScript.
Community description: OpenAI's textGrain hides a statistical signal in word choices. Build a tiny keyed watermark and detector in TypeScript, then watch synonym swaps wear it down. No API key.
Dev.to | Oct 6, 2026 | Bobby Hall Jr
Automated excerpt
Watermarked text keeps picking words whose keyed numbers were unusually high. A detector that needs the key and the text. With a watermark, chosen words have suspiciously high r.
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