EU classifies ChatGPT as very large search engine under Digital Services Act
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Original coverage: The Decoder ↗·How Modelwire adds context
The development
The EU Commission has formally designated ChatGPT as a very large online search engine, triggering compliance obligations under the Digital Services Act that affect any platform exceeding 45 million monthly users in the bloc. OpenAI must now submit risk assessments, transparency documentation, and advertising records by year-end, establishing a regulatory precedent for how generative AI systems are classified under existing digital governance frameworks. The classification signals a shift in how regulators treat conversational AI: not as a novel category requiring new rules, but as an existing service type subject to established oversight. Legal ambiguity remains around whether the Commission can compel training data disclosure, a question that will shape future enforcement and competitive dynamics across the AI industry.
Modelwire’s AI-generated summary of coverage from The Decoder.
Modelwire analysis
Analyst takeOur AI-generated reading of the wider context and the next developments to watch.
The more consequential detail buried in the designation is not the compliance calendar but the classification logic itself: by slotting ChatGPT into the 'search engine' bucket rather than waiting for AI-specific rules, the Commission has effectively decided that the DSA's existing architecture is sufficient, which forecloses the argument that generative AI deserves a regulatory clean slate.
Modelwire has no prior coverage directly on this designation, so this sits largely disconnected from recent stories in our archive. It belongs, however, to a broader thread running through EU digital governance over the past two years: regulators consistently choosing to stretch existing frameworks rather than legislate new ones, a pattern visible in how the AI Act's high-risk classifications were drawn and in early DSA enforcement against recommendation systems. The training-data disclosure question is the live edge here, because it connects DSA enforcement to AI Act obligations that overlap on the same companies.
Watch whether the Commission issues formal guidance on training-data disclosure scope before OpenAI's year-end submission deadline. If it does, that guidance will immediately become the template applied to every other generative AI product that crosses the 45 million user threshold, including Google's Gemini and Perplexity.
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MentionsOpenAI · ChatGPT · EU Commission · Digital Services Act
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