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Google AI Overviews appears less often inside the European Union than outside it. In Peec’s 500,000-prompt study (April 13–20, 2026, full study), AI Overviews showed in 76% of EU searches versus 90.3% outside the EU. Breakdown across major markets (April 2026):
  • US: 91.4%
  • UK: 91.7%
  • Australia: 86.5%
  • Poland: 82.9%
  • Germany: 75.6%
  • France: 0% — the only major market where neither AI Overviews nor AI Mode is served.
Keep the gap in proportion: at 76%, AI Overviews still appears in more than three of every four EU searches, so the study’s conclusion is that AI Overviews has reached maturity in almost every market (76–91%) and deserves tracking everywhere except France. Overall appearance rates and growth are in How often AI Overviews appears. Source: AI Overviews is the most undertracked AI search: 500,000 prompts show why, Peec (Tomek Rudzki), May 2026.