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EU AI Act Article 50 guides: live duties, one remaining deadline

Current to 26 August 2026 · updates land in the changelog.

Article 50 of the EU AI Act has applied since 2 August 2026. Chatbots and AI agents must disclose themselves, generated content must carry machine-readable marks, deepfakes and public-interest AI text must be labeled, and people exposed to emotion recognition must be told — with exactly one transition still running: the 2 December 2026 marking grace for systems placed on the market before August. These guides map the whole regime from the regulation and the Commission's final guidelines.

Start here

• Does your chatbot need a disclosure? — the duty most products meet first.
• The 2 December deadline — what the transition actually covers (less than people think).
• Provider or deployer? — the role question half the confusion reduces to.

All Article 50 guides

• Does your chatbot need an AI disclosure in the EU? Almost certainly, since 2 August 2026
• AI agents under Article 50: disclose the AI — and whose agent it is
• Voice AI under Article 50: when callers must be told they're talking to a machine
• AI-generated images under Article 50(2): who marks, with what, since when
• Deepfakes and AI video: the 50(2)/50(4) split, and the exclusions read narrowly
• AI-written articles: when the text duty bites, and what the editorial exemption really demands
• What Article 50 does not cover: the assistive-editing exclusions, itemised
• Emotion recognition and biometric categorisation: inform the people exposed
• Internal AI tools: the three-condition carve-out, and everything it doesn't cover
• 2 December 2026: exactly what the AI marking transition covers — and what it never covered
• Machine-readable marking under 50(2): the stack that exists, the testing that matters
• Disclosure wording and placement: the 50(5) standard, and where the EU icons fit
• Provider or deployer: sorting the four Article 50 duties, including for non-EU companies
• Article 50 penalties: the €15M/3% tier, the SME inversion, and where enforcement stands

What's free here — and what the pack adds

These guides (free)	Which duty catches which use-case, the final guidelines' tests (obviousness, editorial review, the exclusions list), the deadline's exact scope, penalties — dated and kept current.
The AI Act Article 50 Kit (US$190)	The words and the wiring: disclosure copy in English + 中文 ready to paste, the marking implementation guide with survival-test protocol, labeling walkthroughs, obviousness and scope memo templates, the evidence log, the CoP accession path, and the paid update tracker.

The guides carry the rules, dates and definitions — kept current, no signup. The pack carries the documents you would otherwise build from scratch. See the shape first: free 4-page sample (PDF) · full contents.

Quick answers

When did EU AI transparency rules start applying?

2 August 2026 — Article 50's duties are live, with one transition: machine-readable marking for generative systems placed on the market before that date applies from 2 December 2026.

Who do the Article 50 duties fall on?

Providers carry interaction disclosure (50(1)) and content marking (50(2)); deployers carry emotion-recognition information (50(3)) and deepfake/text disclosure (50(4)). App makers are frequently both.

What are the penalties?

Up to €15,000,000 or 3% of worldwide annual turnover, whichever is higher — for SMEs and startups, whichever is lower (Articles 99(4) and 99(6)).

General information only — not legal advice, and no clearance opinions. Sources are Regulation (EU) 2024/1689 (Articles 50 and 99), Regulation (EU) 2026/1744, the Commission's final Article 50 guidelines of 20 July 2026 (non-binding) and our audited kit research. Marking-technology status changes fast: treat vendor announcements as live only once verified. © 2026 Kilde.

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