OpenAI adds a watermark to ChatGPT text in the EU, ads gain images

OpenAI adapts to the AI Act's transparency rules, tests image-based ads and loses internal ground to Meta and Microsoft over Claude.

OpenAI adds invisible watermark to ChatGPT and Codex text in the EU

Over the coming weeks, OpenAI will add an invisible watermark to text that ChatGPT and Codex generate for users in the EU, across all subscriptions. The technique subtly steers the model's word choice; according to OpenAI, the watermark does not identify the user. API customers worldwide can switch it on themselves for a number of models (off by default), and the detector is for now available only to approved researchers and expert organisations.

What does this mean? Text you write with ChatGPT will in principle become recognisable as AI-generated, although detection becomes harder if you edit or translate it, or if it is short.

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ChatGPT tests image ads during image generation, starting in the US

This month, OpenAI is starting a trial in the United States of image ads that appear when you have an image generated in ChatGPT, with a limited group of advertisers. The ads are separate from the generated image and are visible only to users of Free and Go; Plus, Pro, Business, Enterprise and Edu remain ad-free. OpenAI has not said when the format will come to the Netherlands.

What does this mean? Marketers gain a visual ad format in ChatGPT, but in the Netherlands you cannot yet buy it.

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Meta and Microsoft restrict internal use of Claude

Meta and Microsoft are steering their staff away from Claude, The Information reports. At Meta, the number of internal Claude Code users fell from around 60,000 to 30,000, in favour of in-house tools such as Muse Code and MetaCode. Microsoft cut its planned internal spending on Anthropic by more than a third and is directing developers to GitHub Copilot, although engineers may still choose other models.

What does this mean? Large customers too are watching AI coding assistant costs closely; keep an eye on your own usage and alternatives before committing to a single provider.

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