AI Act Checker

Article 50 EU AI Act — Transparency duties

Art. 50 is the practical section for marketing, e-commerce, communications, and media: when must AI content and AI interactions be disclosed?

The four duty areas at a glance

  • Make chatbots recognizable: anyone chatting or talking to an AI needs to be able to tell (Art. 50(1)).
  • AI providers must build their systems so AI content is technically detectable (Art. 50(2)). This is on the tool makers, not you as a user.
  • If biometric or emotion recognition is used, affected people must be informed (Art. 50(3)).
  • Deepfakes and AI texts on public topics must be clearly labeled when published (Art. 50(4)). The most relevant point for most users.

Official sources

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Web, social, print, phone, or internal. Scenario or decision tree.

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Art. 50 — FAQ

What does Article 50 of the EU AI Act regulate?
Art. 50 is about transparency: people should be able to tell when they're talking to an AI, or when an image, video, audio, or text was created or altered by one.
Which four areas matter most for operators?
As a user, three things matter most: make chatbots recognizable, disclose deepfakes, and label AI texts on public topics, unless a human has editorially reviewed them. A fourth point only applies to the makers of AI tools: they must technically mark their systems.
When does Art. 50 apply?
Core transparency duties apply from 2 August 2026. Machine-readable marking by providers of legacy generative systems has a transition until 2 December 2026.

Key dates & fines (overview)

Phased application of the EU AI Act (Regulation (EU) 2024/1689). Not legal advice.

  1. Prohibitions (Art. 5)

    Prohibited AI practices. Early application

  2. GPAI rules

    Duties for general-purpose AI models

  3. Art. 50 transparency

    Label deepfakes, chatbots, AI texts (operators)

  4. Marking transition

    Machine-readable marking. Legacy systems (providers)

  5. High-risk (Annex III)

    Conformity assessment, CE marking, etc. (Digital Omnibus, deferred from 02 Aug 2026)

Fine orientation (max.)

  • Prohibited practices (Art. 5)EUR 35M / 7% turnover
  • High-risk / systemic GPAIEUR 15M / 3% turnover
  • Transparency (Art. 50)EUR 15M / 3% turnover
  • Incorrect informationEUR 7.5M / 1% turnover

As of 2026-08-15 · Regulation (EU) 2024/1689

Orientation based on the EU AI Act (Art. 50). Not legal advice. For borderline cases consult a qualified lawyer. Effective from 02.08.2026 · ai-act-checker.com