OpenAI will watermark ChatGPT text in the EU but makes it optional for API users worldwide
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OpenAI is rolling out textGrain invisible watermarking for ChatGPT and Codex users in the European Union to comply with EU rules, while keeping API watermarking optional worldwide. The technology embeds a statistical signal in word choices, matching or beating Google's SynthID in internal tests. In tests with a 1 percent false-positive rate, the detector identified watermarks in 95 percent of 400-token passages, dropping to 80 percent for 200 tokens and performing worse on math content. OpenAI also plans to release the technology as open source.
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