Brussels: A new layer of the European Union’s Artificial Intelligence Act took hold on 2 August 2026, and it quietly reshaped what millions of Europeans see on their screens. From that date, providers and deployers of certain AI systems must tell people plainly when a machine, not a person, produces the words, images or video in front of them. The obligation puts AI transparency at the centre of how the bloc governs the fastest-moving technology of the decade.
The core duty sits in Article 50 of the Act. It asks for three concrete things. Chatbots and other interactive systems must disclose that a user is dealing with software. Deepfakes and other synthetic media must carry a clear label. And machines that generate or alter content must embed a machine-readable mark so downstream platforms can detect it. The European Commission set out the framework in its enforcement notice published the same week.
What the rules actually demand
Regulators drew a careful line between disclosure and prohibition. The rules do not ban deepfakes or generative tools. They require honesty about origin. A satirical video remains legal, but its maker must flag that a model created it. A bank chatbot may keep answering questions, yet it must first admit that no human sits behind the reply. Companies that ignore the duty face fines reaching 15 million euros or 3 percent of worldwide annual turnover, whichever climbs higher.
The Commission paired the legal text with a voluntary Code of Practice on transparency of AI-generated content, which spells out how firms can watermark and tag their outputs. Signatories gain a presumption of compliance, a lever Brussels has used before to turn hard law into workable engineering standards.
Independent trackers such as the EU AI Act monitor note the practical gaps that remain. Detection tools still miss a large share of altered media, and watermarks survive poorly once an image passes through screenshots or compression. The law therefore leans on a mix of technical marking and platform cooperation rather than any single silver bullet.
Why the timing matters
The August milestone matters because it targets the part of the Act that ordinary citizens meet daily. Earlier phases hit banned uses and governance duties that mostly concerned specialists. Transparency, by contrast, touches every feed, inbox and customer-service window. It arrives as synthetic media floods elections and advertising across the continent, and as trust in what people read online keeps sliding.
Enforcement will test the design. National authorities gained supervisory powers, yet many still lack the staff and forensic tools to police labelling at scale. Firms outside Europe fall under the rules whenever they serve European users, which extends the reach far beyond the single market but complicates any attempt to chase violations. Brussels is betting that clear duties and steep penalties will nudge the largest providers toward compliance long before regulators knock.
The wager reflects a broader European instinct. Rather than slow the technology, the Union tries to make its outputs legible, so a person can judge a message on its merits and its provenance. Whether labels can keep pace with ever more convincing fakes is the open question the coming year will answer. For now, the principle stands: in Europe, an AI must say so.




