Why the EU Just Reclassified ChatGPT as a Search Engine
I've watched ChatGPT gradually move from a tool people used to ask questions into something that increasingly behaves like a place where people go to find information.
That shift has now been recognized by one of the world's biggest technology regulators.
On August 31, 2026, the European Commission designated ChatGPT as a Very Large Online Search Engine, or VLOSE, under the European Union's Digital Services Act.
The number behind the decision is striking: OpenAI reported approximately 159.1 million average monthly active recipients of ChatGPT Search in the EU for the six-month period ending March 31, 2026.
But the really important story isn't the number alone. It's what the designation says about how AI search is beginning to fit into the regulatory system that was originally built around large online platforms and search engines.
The European Commission has officially classified ChatGPT as a Very Large Online Search Engine under the Digital Services Act.
Why Does the EU Consider ChatGPT a Search Engine?
This is the first question many people will have.
ChatGPT is obviously an AI chatbot, but it can also search the web and return information based on online sources.
The European Commission describes it as a hybrid service that qualifies as an online search engine because it responds to users' queries and can search the internet.
That does not mean the EU is saying ChatGPT is identical to Google Search or Bing.
It means that, under the DSA's legal framework, the service performs a function that falls within the definition of an online search engine when its search features are used.
The 159.1 Million Number Needs Context
The headline number can easily be misunderstood.
OpenAI did not report 159.1 million paying ChatGPT customers in Europe.
It reported approximately 159.1 million average monthly active recipients of ChatGPT Search in the EU over a six-month measurement period ending March 31, 2026.
OpenAI also explicitly says that the figure was calculated for DSA compliance purposes and should not be used for other purposes.
Still, the number is enormous relative to the EU's threshold.
The DSA uses 45 million average monthly users as the threshold for Very Large Online Platforms and Very Large Online Search Engines in the European Union.
On the figure OpenAI reported, ChatGPT Search was therefore more than three times above that threshold.
What Changes Because ChatGPT Is a VLOSE?
The designation brings a new layer of regulatory obligations.
ChatGPT will face additional requirements covering systemic risks, transparency, independent auditing and researcher access to relevant platform data.
The Main DSA Obligations
- Systemic-risk assessments: OpenAI must assess risks associated with the service and its algorithmic systems.
- Risk mitigation: Identified systemic risks must be addressed through appropriate measures.
- Independent audits: The service must undergo an independent audit at least annually.
- Researcher access: Eligible researchers can seek access to platform data for qualifying systemic-risk research.
- Recommender transparency: Where applicable, very large services must provide an option that is not based on user profiling.
- Advertising transparency: Services that display advertising have additional public transparency requirements.
These rules are important because they move oversight beyond individual pieces of content and toward the systems that shape how information is discovered, recommended and presented.
The “Search Engine” Label Is More Important Than It Sounds
This is where the designation becomes particularly interesting for the future of the web.
For years, search engines have been treated as gateways to the internet.
AI search changes that model.
Instead of displaying ten blue links and asking users to open several pages, an AI system can synthesize information and present an answer directly inside the conversation.
That changes how people discover websites, products, news stories and information.
The European Commission's decision effectively acknowledges that this new interface can have search-engine-like significance even though the underlying technology is based on a conversational AI system.
Why This Matters for Publishers and Website Owners
This could be one of the biggest practical consequences of the designation.
If people increasingly ask AI systems for answers instead of typing traditional search queries, websites need to think about visibility in a very different way.
A page may no longer compete only for a position in a conventional search-results page.
Its information may instead be summarized by an AI system, cited as a source or used as part of an answer without the user ever seeing the original page first.
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The Regulation Is Not a Finding That ChatGPT Did Something Wrong
This distinction deserves emphasis because regulatory headlines can sound more dramatic than they are.
The European Commission's designation is based on scale and the legal definition of a very large service.
It is not itself an enforcement finding.
OpenAI now has to meet the additional obligations associated with the designation. Enforcement is a separate process.
That difference matters because otherwise the story can easily turn into an inaccurate claim that the EU has determined ChatGPT violated the law.
What Could Improve
- Greater transparency around AI search systems
- More independent scrutiny
- Better access for qualified researchers
- More visibility into systemic risks
- Additional accountability as AI search grows
What Remains Unresolved
- How AI-specific risks will be measured
- How researchers will interpret access to platform data
- How AI answer systems affect publishers
- How recommendation rules apply to conversational systems
- What future enforcement will look like
What Happens Next for OpenAI?
The European Commission says designated services have four months following notification to comply with the additional VLOSE obligations.
That gives OpenAI a defined window to adapt its compliance systems around systemic-risk assessments, mitigation, audit processes and related transparency requirements.
The designation also creates a mechanism for deeper scrutiny over time.
Very large services must publish annual risk-assessment and audit information, allowing regulators and the public to see more of how the system is being managed.
Researchers Could Gain Something Very Valuable
One of the most interesting parts of the DSA is researcher access.
Under the EU framework, vetted researchers can request access to relevant data from VLOPs and VLOSEs for research into systemic risks and the effectiveness of mitigation measures.
That could eventually help independent researchers investigate questions that are difficult to answer from outside the platform.
Could the EU Designate More AI Services?
Absolutely.
The DSA framework is based on the function and scale of a service rather than creating a permanent exemption for AI companies.
The European Commission has already designated other major digital services, including Reddit and Roblox as Very Large Online Platforms at the same time as ChatGPT's VLOSE designation.
As AI assistants add search, recommendation, publishing and transaction capabilities, the boundary between “chatbot” and “platform” is likely to become increasingly complicated.
What This Means for AI Users in the United States
The designation is an EU regulatory decision, but US users should still pay attention.
The companies affected are global, and changes to products, transparency systems, risk controls and research practices can eventually influence services outside Europe as well.
More importantly, the decision demonstrates that AI search is no longer being treated purely as a novelty.
It is becoming part of the infrastructure through which people access information.
The Bigger Battle Is AI Search vs Traditional Search
Google, Bing and other traditional search engines built their businesses around ranking webpages.
AI search is built around generating answers from information.
That difference is enormous.
The winning system may eventually be the one that can combine the usefulness of an answer engine with the transparency, discoverability and accountability traditionally associated with search.
The EU's ChatGPT designation is an early sign that governments are beginning to treat this new category seriously.
What the ChatGPT VLOSE Decision Really Means
ChatGPT has crossed an important line in Europe.
The European Commission is no longer looking only at it as an AI chatbot. Its web-search functionality is now large enough to qualify as a Very Large Online Search Engine under the DSA.
The 159.1 million figure gets the attention, but the regulatory consequences are the bigger story.
OpenAI now has additional responsibilities around systemic risks, auditing, data access and transparency.
For users, that could mean greater accountability.
For publishers, it reinforces the importance of visibility in an internet where AI systems increasingly stand between users and the original webpage.
And for the AI industry, it establishes an important precedent:
An AI assistant that becomes a major gateway to online information can eventually be regulated like the large information platforms it is beginning to replace.
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Is Your US Business Ready for the EU AI Act?
The VLOSE designation is just the beginning. The EU AI Act imposes strict, binding regulations on any US company whose AI tools or outputs reach European users. With major compliance deadlines actively taking effect in 2026, read our complete guide to understand your risk tier and avoid massive fines.
Read the EU AI Act Compliance Guide →Primary sources checked:
Search Engine Journal — ChatGPT Is Now a Very Large Online Search Engine in the EU
European Commission — Commission designates ChatGPT, Reddit, Roblox under Digital Services Act
OpenAI — EU Digital Services Act and ChatGPT Search monthly active recipients
European Commission — Very Large Online Platforms and Search Engines
Frequently Asked Questions (FAQ) About ChatGPT as a Search Engine
Why did the EU classify ChatGPT as a Very Large Online Search Engine?
The European Commission classified ChatGPT as a Very Large Online Search Engine because its online-search functionality qualifies under the Digital Services Act and the service reached the required scale in the EU.
How many ChatGPT Search users did OpenAI report in the EU?
OpenAI reported approximately 159.1 million average monthly active recipients of ChatGPT Search in the European Union for the six-month period ending March 31, 2026. OpenAI says the figure was calculated specifically for DSA compliance purposes.
What is the EU threshold for a Very Large Online Search Engine?
The Digital Services Act uses an average of more than 45 million monthly users in the EU as the threshold for Very Large Online Platforms and Very Large Online Search Engines.
Does the designation mean the EU found ChatGPT guilty of violating the law?
No. The designation is based on the service's scale and legal classification. It triggers additional regulatory obligations, while enforcement for possible violations is a separate process.
What changes for ChatGPT after the VLOSE designation?
OpenAI must meet additional DSA obligations covering systemic-risk assessment and mitigation, independent auditing, qualified researcher access and certain transparency requirements related to recommendation systems and advertising where applicable.
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