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AI IntelligenceOct 5, 2026AI Intelligence
Article

OpenAI is rolling out an invisible…

…machine-readable text watermark called textGrain to ChatGPT and Codex users in the European Union, with an opt-in setting for API customers globally, to comply with the EU AI Act. The company claims its approach 'matched or exceeded' other methods like Google DeepMind's SynthID for text.

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AI-generatedSource: The Verge AI
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OpenAI is rolling out an invisible, machine-readable text watermark called textGrain to ChatGPT and Codex users in the European Union, with an opt-in setting for API customers globally, to comply with the EU AI Act. The company claims its approach 'matched or exceeded' other methods like Google DeepMind's SynthID for text.