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# Our approach to EU text provenance rules

46 points · 31 comments

[Full discussion](<https://news.ycombinator.com/item?id=49966293>)

[Read original](<https://openai.com/index/eu-text-provenance/>)

Category: [Industry & Society](<https://hacksnap.live/?category=industry-society>)

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OpenAI’s EU text watermarking is limited and easily edited around; the supplied discussion doubts its value, though one reply argues weak rules still deter uninformed users and establish intent\.

## The brief

OpenAI is rolling out text provenance measures to comply with the EU AI Act: API customers can opt in globally, eligible ChatGPT and Codex outputs in the EU will carry an invisible watermark, and detector access will initially go to approved researchers and expert organizations\. Its textGrain system adds a statistical signal to word choices; OpenAI reports strong detection in ideal long passages but sharp degradation for short, constrained or edited text\. The company says watermarking did not meaningfully change Astra benchmark scores and stresses that a watermark does not measure human contribution, ownership, user identity or accuracy\.

- The EU AI Act requires machine\-readable identification of generated text; OpenAI describes text watermarking as early technology with significant limitations\.
- textGrain embeds an invisible statistical signal in model word choices; the detector checks for it, a technical report is forthcoming, and OpenAI plans open source\.
- At a 1% false\-positive target, detection was about 80% for 200\-token passages and 95% for 400\-token psychology passages, with lower rates for mathematics\.
- Replacing 10% of words with synonyms cut detection from about 92% to 66% in 400\-token passages; replacing 25% cut it to 17%\.
- OpenAI reports no meaningful benchmark differences for Astra with and without watermarking across Artificial Analysis, AutomationBench, DeepSWE, Terminal\-Bench, BrowseComp, HealthBench and GPQA Diamond\.
- Detector access is limited at launch to approved researchers and expert organizations; API watermarking is opt\-in and off by default, while the EU ChatGPT and Codex rollout is regional\.

## Discussion themes

Analyzed: 2026\-10\-05T22:02:28\.874167\+00:00

Analysis sample: Based on 4 of 4 usable stored comments. Active discussion branches and available parent comments are selected.

This sample may omit parts of the full thread. Selected themes do not measure community opinion or how common a view is.

### Watermark bypass by editing

Changing words can evade detection, so the watermark may not stop determined users\.

Sources: [Comment 49967944](<https://news.ycombinator.com/item?id=49967944>)

### Regulation as deterrent

A counterargument holds that easy\-to\-bypass rules still deter uninformed users and help prove intent\.

Sources: [Comment 49968218](<https://news.ycombinator.com/item?id=49968218>)

### Enforcement and criminal intent

One reply worries that attempting to remove an LLM watermark could later be used as evidence for prosecution\.

Sources: [Comment 49968870](<https://news.ycombinator.com/item?id=49968870>)

### EU compliance burden

The EU text provenance rule is dismissed as another cookie\-consent\-style exercise with questionable success\.

Sources: [Comment 49968378](<https://news.ycombinator.com/item?id=49968378>)

## Sources & coverage

AI-generated summary · 2026\-10\-05T22:02:29\.398467\+00:00

Based on 4 of 4 usable stored comments, selected by depth and branch activity. This is a sample of the discussion. Article text may also be shortened.

Generated using deepseek\-ai/DeepSeek\-V4\.1\-Flash. Check the linked sources for full context.
