GoKawiilOpenAI introduces optional invisible text watermarking for ChatGPT and Codex in EU
OpenAI revealed plans to implement an invisible watermarking system for its ChatGPT and Codex models, starting with EU users and API customers who can opt in. The watermarking will be limited initially, with broader rollout expected in the coming weeks, and access to the detection tool is being granted to select researchers.
GoKawiil's interpretation of the reporting above, not reported fact.
This development indicates OpenAI's effort to comply with the EU AI Act's transparency requirements, positioning the company to better address regulatory concerns. It also highlights ongoing industry efforts to balance AI innovation with accountability measures, which could influence future standards and user trust.
- OpenAI's watermarking is optional and initially limited to EU users.
- The system is designed to be invisible and difficult to detect without special tools.
- Access to the watermark detector is restricted to researchers for evaluation.
Source: 9to5mac.com — Marcus Mendes, 2026-10-05
Published there as: “OpenAI details new text watermarking system for ChatGPT, Codex, and the API”
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