SORRY, OpenAI. The European Union (EU) is making life for the leaders of artificial intelligence (AI) much less private.

A newly agreed draft of the region’s upcoming AI Act will force the maker of ChatGPT and other companies to share previously hidden details about how they build their products. The legislation will still rely on companies to audit themselves, but it’s nonetheless a promising development as corporate giants race to launch powerful AI systems with almost no oversight from regulators.

The law, which would come into force in 2025 after approval from EU member states, forces more clarity about the ingredients of powerful, “general purpose” AI systems like ChatGPT that can conjure images and text. Their developers will have to report a detailed summary of their training data to EU regulators, according to a copy of the draft seen by Bloomberg Opinion.