OpenAI’s textGrain Watermarking: What Invisible AI Signatures Mean for ChatGPT Users
Reading Time: 5 minutesOpenAI has launched textGrain, an invisible machine-readable text watermark, in ChatGPT and Codex for EU users to comply with the EU AI Act. The technology claims to match or exceed rival approaches like Google DeepMind’s SynthID, though OpenAI acknowledges it cannot guarantee detection in all cases.