The European Commission quickly opened a formal antitrust investigation on December 4, 2025, assessing whether Meta's policy breached EU competition rules by self-preferencing its own AI assistant and foreclosing rival AI providers from WhatsApp's massive user base . Separately, Italy's antitrust authority (AGCM) ordered Meta to exempt Italy from the ban in January 2026
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Executive Vice-President Teresa Ribera announced the decision, stating the Commission found Meta's conduct risked "serious and irreparable harm to competition" in the rapidly growing market for AI assistants . The order applied across the entire European Economic Area (EEA) — the 27 EU member states plus Iceland, Liechtenstein, and Norway
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Meta had previously attempted to stave off the order at a closed hearing in early May 2026, and announced it would appeal the interim measures, calling them "regulatory overreach" .
Following the EU order, OpenAI reactivated ChatGPT on WhatsApp for the EEA on July 13, 2026 . According to OpenAI's official release notes and multiple news reports, users can
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This case represents one of the most consequential applications of EU antitrust tools to the intersection of messaging platforms and AI — two markets where Big Tech holds structural advantages. Several high-stakes dimensions stand out:
Fine exposure for non-compliance: If Meta is ultimately found in breach of EU antitrust rules, it faces fines of up to 10% of its global annual turnover — potentially billions of dollars. Periodic penalty payments for non-compliance with the interim measures can also be imposed .
The DMA enforcement precedent: In April 2025, the Commission fined Meta €200 million for breaching the Digital Markets Act (DMA) over its "pay or consent" data collection model, and Apple €500 million . The WhatsApp-AI case tests whether the DMA and traditional antitrust rules together can effectively police self-preferencing in AI distribution — an area the DMA alone may not fully cover
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Platform vs. AI competition: The case is a test of whether dominant messaging platforms (WhatsApp has over 2 billion users globally) can be compelled to act as neutral distribution channels for rival AI services. The Commission's theory is that WhatsApp's "gatekeeper" status in messaging gives Meta the ability and incentive to foreclose competition in the adjacent AI assistant market .
Broader Big Tech fines in Europe: Since 2024, the EU has levied more than €6 billion (~$7 billion) in fines across six antitrust and DMA cases against Google, Apple, and Meta . The WhatsApp-AI case adds a new dimension — using interim measures to force behavioral change during an investigation, rather than waiting years for a final ruling.
Global regulatory ripple effects: Brazil's antitrust authority (CADE) separately ordered Meta to suspend its AI chatbot ban in January 2026 . The EU's approach could influence how other jurisdictions (UK, India, South Korea) regulate AI distribution on dominant platforms.
Appeal and timeline: Meta is appealing the interim measures, and the underlying antitrust investigation has no statutory deadline . A final ruling could take several years, meaning the restored access for rival AI assistants may remain in place for the duration — or be reversed if Meta wins on appeal.