Law note · European Union

AI Act, Article 50 (transparency obligations for AI systems and synthetic content)

Citation	Regulation (EU) 2024/1689, Article 50
Status	In effect
In force	2026-08-02
Reviewed	as of 2026-08-14

Providers of AI systems that interact directly with people must ensure users are informed they are dealing with an AI system unless obvious from context, and providers of generative AI must mark synthetic audio, image, video, or text output in a machine-readable, detectable format. Deployers of emotion-recognition or biometric-categorization systems must inform exposed individuals, and deployers of deepfakes or AI-generated public-interest text must disclose the artificial origin unless the content underwent human review with editorial responsibility. The Article reaches providers and deployers outside the EU whose system's output is used in the EU. A four-month transition, to 2026-12-02, applies only to the machine-readable marking sub-duty for generative systems already on the market before 2026-08-02, added by the Digital Omnibus on AI.

What it asks of an app

• Tell users they are talking to an AI when your app deploys a chatbot or voice agent
• Mark AI-generated text, audio, image, and video output as AI-generated
• Use a machine-readable marking where feasible

When LexLint raises it

Declared activities: generates_content, deploys_chatbot

Primary source: official consolidated Official Journal text, EUR-Lex

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