EU AI Act topic guide
Transparency obligations under the EU AI Act (Article 50)
Not every AI use is banned or strictly regulated - many AI systems sit in a "limited/transparency risk" tier where the main obligation is to be honest about the AI's role. Article 50 sets out four distinct transparency duties covering chatbots, AI-generated content, deepfakes and emotion/biometric categorisation systems. These obligations apply from 2 August 2026 for most providers.
Reviewed by the AI Act Navigator team · Last updated 9 June 2026
TL;DR
- Chatbots and conversational AI: users must be told they are interacting with an AI system - unless it is obvious.
- AI-generated/synthetic content: providers must mark outputs (audio, image, video, text) in a machine-readable format as artificially generated or manipulated.
- Deepfakes: deployers must disclose when content has been artificially generated or manipulated - with limited carve-outs for artistic/satirical works with appropriate labelling.
- Emotion recognition and biometric categorisation: deployers must inform the people being processed.
- [OMNIBUS - PROPOSED] The Digital Omnibus provisional agreement would reduce the grace period for AI-content marking to 3 months (effective 2 December 2026 instead of 2 August 2026).
Scope
What this covers
- Chatbots and conversational AI systems (Article 50(1)): providers must ensure that natural persons interacting with AI are informed they are interacting with an AI system - unless it is evident from context or the system is used for criminal-investigations or similar lawful purposes.
- AI-generated content - machine-readable marking (Article 50(2)): providers of AI systems generating synthetic audio, image, video or text content must ensure outputs are machine-readably marked as artificially generated or manipulated. Technical standards to be developed.
- Deepfakes - deployer disclosure (Article 50(4)): deployers who use AI to generate or manipulate content showing real persons, places or events that falsely appears authentic must disclose the artificial nature. Carve-out for legitimate artistic, creative or satirical works, provided the content is clearly labelled.
- AI-generated text for public information (Article 50(3)): deployers publishing AI-generated text to inform the public on matters of public interest must disclose the AI-generated nature - unless this text has undergone substantial human editing.
- Emotion recognition and biometric categorisation (Article 50(5)): deployers of AI systems that recognise or infer emotions, or categorise natural persons based on biometric data, must inform the persons concerned in advance.
Article 50 transparency obligations apply from 2 August 2026 for providers (subject to the proposed Digital Omnibus adjustment for AI-content marking). They are separate from and lighter than the high-risk obligations. Many AI systems will only be subject to Article 50, not to Chapter III high-risk requirements.
Compliance challenges
Key compliance challenges
- Machine-readable marking standards for AI-generated content are still being developed - providers cannot yet buy a simple technical solution off the shelf.
- The "obvious AI" exception for chatbots is narrow: where a system is branded as an AI assistant, users are likely informed; but where AI is embedded in a human-seeming interface, disclosure is required.
- Deepfake disclosure in creative/satirical contexts requires clear labelling - the artistic carve-out does not mean no disclosure, only that a different labelling form is acceptable.
- Emotion recognition notification must be given "in advance" to the persons concerned - this can create operational challenges in contexts like retail or transport.
The EU AI Act applies a risk-based approach: obligations scale with the level of risk posed. AI Act high-level summary
What to do
What to do
- Identify every AI system that has a conversational or interactive interface: implement a visible AI-disclosure notice for users.
- Audit AI systems that generate synthetic audio, image, video or text: prepare for machine-readable marking when the technical standards land.
- Review any use of AI to generate content depicting real people, places or events: implement deepfake disclosure where the content could mislead.
- Identify emotion-recognition or biometric-categorisation deployments: design advance notification to affected persons.
- Monitor the Digital Omnibus adoption for possible changes to the AI-content marking timeline.
For the full obligations breakdown, see the AI Act obligations guide, and for role-specific duties see the provider vs deployer guide.
[PROPOSED] Digital Omnibus changes to Article 50 - not yet law
FAQ
Transparency obligations: common questions
- Does every AI chatbot need an "I am an AI" notice?
- Yes, unless it is clear from the context that the user is interacting with an AI - for example a product explicitly branded as "AI Assistant." Where there is any ambiguity about whether the user understands they are talking to an AI, a disclosure is required. The obligation falls on the provider of the chatbot system.
- What does "machine-readable marking" for AI-generated content mean?
- It means embedding metadata or a signal in the output file that allows automated systems (not just humans) to detect that the content is AI-generated or manipulated. Standards are still being developed by the Commission and standardisation bodies. Existing technologies like C2PA watermarking are candidate approaches.
- Are Article 50 violations subject to the same fines as high-risk non-compliance?
- Yes - Article 50 violations fall under the Tier 2 penalty: up to €15 million or 3% of worldwide annual turnover. This is the same tier as non-compliance with other obligations, including high-risk requirements.
- Do these transparency obligations apply to internal AI tools?
- The chatbot disclosure obligation applies where a natural person is interacting with the AI system - so an internal employee-facing AI assistant is covered. The emotion-recognition and biometric-categorisation notification applies whenever persons are subject to the system, including employees. AI-generated content marking mainly concerns outputs disseminated externally, but the provider obligation attaches to the system regardless.
- Can you use satirical deepfakes without restriction?
- The artistic/satirical carve-out does not remove the disclosure requirement - it only permits a different form: the content must be "clearly labelled" as artificially generated or manipulated. A deepfake political satire video is allowed as long as it carries visible labelling; it cannot simply be published without any disclosure of its AI-generated nature.
Get AI Act-ready
Use the risk classifier to find your system's tier, then explore the obligations and checklist for your role.
This is guidance, not legal advice
Sources
- [1]Regulation (EU) 2024/1689 (EU AI Act) - EUR-Lexretrieved 9 Jun 2026
- [2]European Commission: AI regulatory frameworkretrieved 9 Jun 2026
- [3]AI Act Explorer: high-level summaryretrieved 9 Jun 2026
- [4]AI Act implementation timelineretrieved 9 Jun 2026
- [5]Council of the EU: Digital Omnibus provisional agreement, 7 May 2026retrieved 9 Jun 2026
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