The weekly briefing
What changed in AI search this week
Week of 11 May 2026
ChatGPT confirmed 900 million weekly active users, up from 400 million in February 2025. The adoption curve is now vertical. Read the full story.
Source: OpenAI / DemandSage, May 2026
Google AI Overviews now appear on approximately 20% of all search queries, up from 13% in January. Zero-click rates on those queries: 83%.
Source: Similarweb / BrightEdge, May 2026
Perplexity reported $200 million in 2025 revenue, a 300% year-on-year increase. The AI search category is not a side project anymore.
Source: Business of Apps, May 2026

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