ChatGPT Personalized Ads in Europe Raise Privacy Concerns as German Regulators Issue Warning
ChatGPT users in Europe may soon see a new type of advertising inside the chatbot, and privacy regulators in Germany are already raising concerns. Since August 24, OpenAI has been showing ads to users on the free ChatGPT plan and the lower-cost ChatGPT Go plan in Germany and other European markets. Until now, those ads have reportedly been based mainly on the current conversation.
That could soon change.
Data protection authorities in Hamburg and Berlin have warned that OpenAI appears to be preparing to introduce personalized ads in Europe. The concern follows an update to OpenAI’s privacy policy at the end of August, which suggests that broader user data could be used to create advertising profiles.
The change would affect users of ChatGPT’s free tier and ChatGPT Go. Paid plans such as ChatGPT Plus are expected to remain ad-free.
What data could be used for ChatGPT ads?
According to the Hamburg data protection authority, personalized advertising in ChatGPT could involve data from both past and current conversations, along with device information and usage data.
OpenAI’s own advertising guidance says that when ad personalization is enabled, ads may be influenced by “past chats and memory.” That means the chatbot may not only look at what you are asking in the moment, but also at previous interactions and saved memories.
The Berlin data protection commissioner gave a simple example: if a user asks ChatGPT for recipes, they may later see an ad for a food delivery service. In that case, the connection may seem harmless.
But regulators warn that ChatGPT conversations are often much more personal than a typical web search. Users frequently ask about health issues, financial problems, career decisions, relationships, legal worries, emotional struggles, and other sensitive subjects. If this type of information is used to shape advertising profiles, it could create serious privacy risks.
Hamburg’s authority said there are significant concerns for privacy and personal rights because chatbot conversations can reveal highly intimate details. It also pointed to OpenAI research indicating that around 49% of prompts were questions, suggesting that many people use ChatGPT as an advice tool rather than just a search engine or writing assistant.
Berlin’s data protection commissioner, Meike Kamp, also warned that personalized ads in ChatGPT may involve the processing of highly sensitive information.
Rejecting personalized ads will not remove all ads
Under European privacy rules, OpenAI needs user consent before showing profile-based personalized ads. That means users in the European Economic Area and Switzerland should be asked before their chat history, memory, or broader usage data is used to personalize advertising.
However, saying no will not make ads disappear entirely.
If users decline personalized ads, ChatGPT may still show ads based on the current conversation, approximate location, and language settings. OpenAI does not ask for consent for these ads because it relies on what it considers a legitimate interest.
In other words, European users may be able to stop profile-based ad personalization, but not advertising altogether unless they use an ad-free paid plan. Temporary chats are also reported to avoid ads and do not rely on chat history or memory.
No confirmed launch date for personalized ads in Europe
OpenAI has not announced an exact launch date for personalized ads in Europe. Its current help information still says that personalized ads are not initially available in the European Economic Area or Switzerland.
Even so, both Hamburg and Berlin regulators believe the feature is coming soon. Their message to users is clear: check your privacy settings before the rollout begins.
ChatGPT privacy settings users should review now
German regulators recommend that users decline personalized ads when ChatGPT asks for consent. The relevant option can be found in ChatGPT settings under Ad controls.
Users should also review ChatGPT’s memory feature. Since saved memories may influence which ads appear, it is worth checking what ChatGPT has stored. Users can delete individual memories or turn memory off completely if they do not want personal details retained.
For sensitive questions, regulators recommend using temporary chats. Temporary chats do not appear in chat history and do not use memory, making them a safer option for private topics. However, users should still avoid entering confidential, highly personal, financial, medical, or legally sensitive information into any chatbot.
Hamburg’s data protection authority also advises users to turn off the use of chats for model training and to delete chat history regularly. OpenAI’s privacy center brings several of these controls together in one place, but users still need to review and change the settings themselves.
Why this matters for ChatGPT users
The arrival of ads in AI chatbots marks a major shift in how free AI tools may be funded. While advertising is common across the internet, ChatGPT is different from a normal website because users often treat it like a private assistant, therapist, tutor, researcher, or adviser.
That creates a deeper privacy challenge. A search query may reveal interest in a topic, but a ChatGPT conversation can reveal context, emotions, patterns, personal problems, and long-term concerns. If that information becomes part of an advertising profile, users may feel less comfortable asking honest questions.
For now, European users should keep an eye on ChatGPT’s ad settings, review saved memories, use temporary chats for sensitive conversations, and think carefully before sharing private information with AI tools.
