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Two hands are holding pictures of houses on a desk. One of the pictures has an AI icon in the lower right corner. The entire image is labeled as having been generated by AI.

Labeling AI Content


When You Must Disclose AI-Generated Content from ChatGPT, Gemini, Copilot, and Others—and When You Don’t. 

A Guide to Article 50 of the AI Regulation.
 

The Most Important Points in 60 Seconds

  1. There is no requirement to label everything created using AI. The law applies only to certain situations.
  2. Three cases clearly require labeling: 
    1. Chatbots
    2. Hyper-realistic images, videos, and voices
    3. Unverified AI-generated text on topics of public interest
  3. The invisible watermark provided by AI providers doesn’t do the work for you. You must provide the visible notice to your readers, customers, and viewers yourself.

Who is responsible—and for what?

The law distinguishes between two roles. Technical labeling is the responsibility of AI providers. Their duty as companies is to provide a visible notice to the people who see, hear, or read their content.

  • Role 1: The AI provider
    OpenAI, Google, Microsoft, Anthropic, Mistral, and others. They must technically label their results: invisibly, in a machine-readable format, using watermarks and metadata. You won’t notice any of this in your daily life.
  • Role 2: AI Operator (= Your Company)
    All individuals who use an AI system in a professional capacity. You must provide visible information to users: in the chat window, on the image, or below the text—in a way that catches their attention upon first contact.

The provider’s watermark does not fulfill your obligation. Both must appear side by side.

An Overview of the Four Obligations

Article 50 of the AI Regulation, effective as of August 2, 2026.
Two hands are holding a cell phone; a chat window is open on the screen, and it reads, “Hello. You are chatting with an AI.” The image includes a note stating that it was generated by AI.

1. The Chatbot Notice

Anyone who talks or writes with an AI needs to know this. The notice should be placed at the beginning, not in the Terms and Conditions. Exception: It’s obvious to everyone anyway.

Applies to: Providers and, in practice, your website

A sheet of paper is held up to the light, and a watermark shimmers through it. The image includes a note stating that it was generated by AI.

2. Technical Labeling

AI results bear an invisible identification mark. Providers are responsible for this—for older AI systems, effective December 2, 2026.

Applies to: AI providers

A person laughing, with a box next to them in which the emotion is being analyzed. The image includes a note stating that it was generated by AI.

3. Emotions and Biometrics

Systems that detect emotions or classify people based on physical characteristics must be disclosed to the individuals concerned.

Applies to: Your company; in addition, you should comply with data protection laws in this regard.

A view over the shoulder of a woman looking at a screen displaying an image of the Eiffel Tower in Paris set against a desert backdrop. An AI icon is visible in the right-hand corner of the image on the screen. The entire image includes a note stating that it was generated by AI.

4. Deepfakes and Text

Images, videos, and voices that appear deceptively real must be disclosed. The same applies to AI-generated texts published on topics of public interest—unless a human has reviewed them.

Applies to: Your company

In what cases do I need to label my AI-generated content?

Four questions will provide the answer in the vast majority of cases. We’ve clearly laid them out for you in the following chart: 

Questions where a “yes” or “no” answer leads to another answer or a follow-up question

Thirteen Examples from Everyday Life

Typical situations in businesses—and how they should be classified based on current guidelines: 

AI labeling required?
Customer service chatbot on your website
AI phone assistant that schedules appointments
Photorealistic advertising image of a scene that never existed
Comic or fantasy motif, such as a flying dragon
Product photo cropped, sharpened, and denoised using AI
Product photo with a background generated by AI
Cloned voice of the executive team in a promotional video
Blog post about your products, AI-drafted, editorially reviewed
Article on a sociopolitical topic, published without review
Internal presentation, minutes, or memo
AI Translation of Your Newsletter
Source code from an AI programming assistant
Job application tool that analyzes emotions

Please note: YouTube, Meta, TikTok, and other platforms require specific disclosures regarding AI content. These rules apply in addition to the law—and are enforced more quickly than by any government agency.

Any questions or concerns?

The Gray Areas

In three cases, classification is difficult. Until the courts have ruled, a rule of thumb can help in each instance.

What do the providers’ watermarks do?

Google, OpenAI, Anthropic, and Microsoft embed invisible markers and signed source data in their results. For you as a business, this means:

  • It’s the providers’ responsibility, not yours. Your visible notice to readers remains unaffected.
  • Don’t rely on this. Paraphrasing, copying, or taking a screenshot destroys such traces—studies show very high loss rates.
  • Detection tools can be wrong in either direction. An AI detector is not proof—neither for nor against—that a human is the author.

Deadlines and Next Steps

Calendar page dated August 2, 2026

Labeling Requirements Take Effect

As of August 2, 2026, the labeling requirements of the AI Regulation take effect. Chatbots, hyper-realistic AI images, videos, and voices, as well as unverified AI-generated text on public topics, must be disclosed.

Calendar page dated December 2, 2026

Labeling Required for Older AI Systems as Well

Starting December 2, 2026, older AI systems must also label their results in a way that is invisible to users but machine-readable. This requirement applies to AI providers, not users.

Calendar page dated February 2, 2027

Detection Tools Must Be Compatible

Starting February 2, 2027, the tools used to detect AI markers must be compatible with one another. This requirement also applies to AI providers.

Calendar page dated August 1, 2027

New Oversight in the Media Sector

Starting August 1, 2027, state media regulatory authorities are to monitor the use of AI by publishers and broadcasters. The inter-state treaty governing this still requires approval from the states (as of October 2026).

How We Support You

Customized Legal Advice

Are you unsure which AI-generated content you need to label? We review your specific cases and work with you to establish the necessary processes—from conducting an initial assessment to drafting an AI policy and negotiating contracts with service providers. In doing so, we also take into account advertising law, copyright law, and professional and industry-specific regulations.

Porträt von Thilo Märtin
Thilo
Märtin
Lawyer I Equity Partner
Porträt von Luise Klufmöller
Luise
Klufmöller LL.M.
Lawyer I Counsel
Specialist lawyer for copyright and media law
Specialist lawyer for intellectual property law

Practical AI Workshop

Do you want your team to work confidently with AI? In our workshop, we’ll work together on your own use cases and explain the legal considerations, always keeping in mind what works best in day-to-day work.

Frequently Asked Questions and Answers

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