Our approach to EU text provenance rules
- ID
- 31903
- Status
- summarized
- Published
- 05 Oct 2026, 11:00 PM
- Fetched
- 06 Oct 2026, 12:11 AM
- Provider
- OpenAI News
- Category
- ai-labs
- Original URL
- https://openai.com/index/eu-text-provenance
- Source URL
- https://openai.com/news/rss.xml
Summary
- Score
- 6.0
- Created
- 06 Oct 2026, 12:15 AM
- Tags
- Audience
- developersvibe_codersai_ml_learnersai_agent_userssaas_startup_founders
What happened
OpenAI says API customers globally can now opt in to text watermarking for select models, but it remains off by default, and it will add an invisible textGrain watermark to eligible ChatGPT and Codex text output in the European Union over the coming weeks to meet EU AI Act machine-readable provenance rules. It is opening applications for a text watermark detector to approved researchers and expert organizations, plans to open-source the technology, and says textGrain matched or exceeded SynthID for text in evaluations while warning detection still has false positives and false negatives.
Why it matters
If you build AI text features for EU users, watch the EU ChatGPT/Codex rollout and decide whether opt-in API watermarking is needed for your own outputs; if you mostly use the API outside the EU, nothing changes by default. Detector access is limited for now, so don't design a compliance or plagiarism-detection workflow around OpenAI's detector until it is broadly available or the open-source textGrain code ships. There is no direct Malaysia/SEA policy, funding, or infrastructure angle in this item.
Discussion angle
Would you opt in to OpenAI API text watermarking now for EU-facing text, or wait until the detector or open-source textGrain is available and test false positives first?