OpenAI will start watermarking ChatGPT's text in the EU to comply with the AI Act.[8066397][8030266] The watermarking will be visible to users, making it harder to edit and remove.[8066397] The move comes after the EU AI Act was adopted in April 2023, requiring companies to implement measures to ensure the transparency and accountability of AI models.[8030266] The AI Act aims to promote human values and ensure that AI systems are transparent, explainable, and fair.[8030266] OpenAI has already started implementing text watermarking for some of its models, and will expand this to all EU-based users starting today.[8066397] For API customers globally, the opt-in setting will allow them to choose whether or not to use text watermarking for select models.[8066397][8030266]