The European Union's executive arm is preparing to designate ChatGPT as a 'very large online platform' under the Digital Services Act (DSA), a regulatory framework that will expose OpenAI to heightened scrutiny and compliance requirements. According to Bloomberg reporting, ChatGPT has crossed the threshold of 45 million monthly users in the EU, triggering the bloc's most stringent regulations.

What Does 'Very Large Online Platform' Actually Mean?

The label sounds like a compliment, but it's actually a regulatory anchor. Platforms designated as "very large online platforms" under the DSA must comply with Europe's most demanding rules for content moderation, transparency, and user protection. This classification reflects how the EU views AI chatbots not as niche tools, but as mass-market services with real power to influence millions of people.

The DSA, which became Europe's de facto tech regulation framework, has already proven its teeth. When X (formerly Twitter) failed to comply with content moderation standards and design requirements, the EU fined the platform 140 million euros, though appeals are ongoing. ChatGPT's pending designation suggests OpenAI should expect similar levels of regulatory attention.

Which Platforms Share This Status With ChatGPT?

ChatGPT is now joining an exclusive club of digital services that have reached massive scale. The other members of the "very large online platform" designation include:

• Social Media Giants: Facebook, Instagram, LinkedIn, and TikTok, which have billions of users globally
• Video and Content Platforms: YouTube and Wikipedia, which serve as primary information sources for millions
• E-Commerce Services: Amazon Store and Zalando, which dominate online shopping in Europe
• Gaming and Virtual Spaces: Roblox, which is also being designated alongside ChatGPT in this regulatory action

The inclusion of ChatGPT in this group underscores a significant shift: the EU now treats advanced AI chatbots as infrastructure-level services comparable to social networks and search engines.

What Regulatory Obligations Come With This Label?

Platforms designated as "very large online platforms" face a range of compliance requirements designed to protect users and ensure fair competition. One key obligation involves financial accountability. The DSA imposes fees on these platforms calculated using a mathematical formula based on the service's number of users. Importantly, the fee cannot exceed 0.05 percent of the service provider's worldwide profit in the preceding financial year.

Beyond financial penalties, OpenAI will need to demonstrate robust systems for moderating harmful content, protecting minors, and preventing the spread of illegal material. The company must also provide transparency about how its algorithms work and how it handles user data. These requirements are substantially more demanding than those facing smaller platforms.

Steps to Understand the Impact of This Designation

• Know the Threshold: The 45 million monthly EU user threshold is the key metric that triggered ChatGPT's designation, placing it in the same regulatory category as Facebook and YouTube
• Understand Fee Implications: OpenAI may face annual compliance fees capped at 0.05 percent of its worldwide profit, a significant financial obligation tied to the platform's scale
• Expect Increased Transparency Requirements: The DSA designation means OpenAI must disclose more information about content moderation practices, algorithmic decision-making, and data handling to EU regulators
• Monitor Enforcement Patterns: The EU's 140 million euro fine against X demonstrates that the DSA carries real enforcement power, suggesting OpenAI should prioritize compliance to avoid similar penalties

The EU's move reflects a broader pattern of regulatory action against major tech platforms. The DSA came into effect in 2022 and has already reshaped how companies operate in Europe. When Elon Musk took over Twitter around the same time, DSA regulators quickly became known as "the world's platform cops," according to reporting on the regulatory landscape. The framework has proven effective at forcing compliance, even from the most powerful tech companies.

OpenAI and Roblox did not respond to Bloomberg's requests for comment on the designation, and the European Commission declined to confirm the reports. However, the designation is expected to move forward, signaling that the EU views AI chatbots as services requiring the same level of oversight as social networks and e-commerce platforms.

For OpenAI, this designation marks a turning point. ChatGPT has grown from a research curiosity to a service used by tens of millions of people across Europe for work, education, and daily tasks. The EU's regulatory response reflects the reality that AI chatbots are no longer niche tools, but mainstream services with significant influence over how people access information and complete tasks. As AI continues to reshape the digital landscape, expect more regulatory actions like this one, both in Europe and beyond.