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July 14, 2026 · 3 min read

AI Labelling Rules: What Applies From August 2026

On 2 August 2026 the AI Act's transparency duties kick in: chatbots must identify themselves, AI content needs marking. Who has to do what, in plain terms.

AA
Anton Anders
IT consultant & developer

On 2 August 2026 the AI Act’s transparency duties go live — and unlike the high-risk rules, they were not postponed by the Digital Omnibus. Concretely: chatbots must identify themselves as AI, AI-generated images, audio and video need machine-readable marking, and deepfakes must be disclosed. For most companies this is settled with one sentence in the chat window and one look at the tools in use — you just need to know which of the four duties applies to you.

The usual framing: technology, not legal advice. Edge cases belong with a professional.

The four duties in Article 50

Article 50 distributes the duties depending on whether you provide an AI system or merely deploy one (full text at EUR-Lex):

DutyWho it hitsWhat to do
Chatbot disclosureDeployers of AI that interacts with peopleState that an AI is answering — unless it’s obvious
Machine-readable markingProviders of systems that generate contentWatermarks/metadata in image, audio, video, text
Deepfake disclosureDeployers publishing deceptively real mediaVisibly label the content as artificially generated
Notice for emotion recognition / biometric categorisationDeployers of such systemsActively inform the people affected

For SMEs, almost only the first and third rows matter. The machine-readable marking is the providers’ job — OpenAI, Google and friends, not you as a user of their tools. And hardly any normal business runs emotion recognition; in the workplace it has been banned since February 2025 anyway.

The website chatbot: the most common gap

If a chatbot handles your customer service or website enquiries, from August it needs a clear note that an AI is answering. The law prescribes no wording — “I’m the digital assistant of …” in the greeting does the job. The exemption for the obvious helps less than you’d think: what’s obvious to you as the operator isn’t obvious to an averagely informed person. The note costs one line.

The same logic covers AI on the phone: a voice AI answering calls has to identify itself before anyone believes they’re talking to a human.

What about AI text in blogs and marketing?

This is where most of the uncertainty sits. The disclosure duty for published text targets content that informs the public on matters of public interest, and it lapses when a human has editorially reviewed the content and carries responsibility for it. A company blog whose posts someone reads, checks and approves stays out of scope — regardless of how much AI helped with the draft. If, on the other hand, you mass-publish generated text unread, labelling is not your biggest problem.

For images, the line runs at deception: an illustrative, recognisably artificial picture in a blog post is not a deepfake. A photorealistic image faking a real event or a real person is one — and must be labelled as artificially generated.

What to do before August

The exercise is the same as for the other AI Act duties, just smaller: walk through where AI is visible to the outside. Chatbot on the website, voice assistant on the phone, generated images in marketing, videos with synthetic voices. For every hit, the fix is a notice or a label — none of it needs a project budget. If you combine the walkthrough with the data-class matrix from your GDPR work, both jobs are done in one session. And for transition cases: systems already on the market have a grace period for machine-readable marking until 2 December 2026 (details at Gibson Dunn).


Not sure which of your AI applications needs a notice from August? Get in touch — the walkthrough is a short session, not a consulting week. If needed, it’s also available as part of a broader assessment.

Frequently asked questions

What does the AI Act's labelling obligation require? +

Article 50 boils down to four duties: chatbots must identify themselves as AI, AI-generated content must carry machine-readable marking, deepfakes must be disclosed, and anyone deploying emotion recognition or biometric categorisation must inform the people affected.

When does the AI labelling obligation apply? +

From 2 August 2026 — this date was not moved by the Digital Omnibus. Only the machine-readable marking for systems already on the market gets a transition period until 2 December 2026.

Do I have to label AI-generated blog posts? +

In most cases no. The disclosure duty for published text targets content informing the public on matters of public interest — and it lapses when a human has editorially reviewed the text and carries responsibility for it. A company blog with editorial review normally stays out of scope.

Does the duty cover the chatbot on my website? +

Yes. A customer-service chatbot must identify itself as AI unless that is obvious from the circumstances anyway. A clear note in the chat window is enough — it is the easiest obligation in the entire AI Act to satisfy.

Sounds like your situation?

Let’s talk about it — free and with no strings attached.