Open dataset of AI answer engine market share, citation patterns, and GEO performance benchmarks. Updated quarterly. License: CC BY 4.0 — please cite alanconnect.com/stats.
| Metric | Value |
|---|---|
| ChatGPT share of generative-search queries | ~60% |
| Google AI Overviews / AI Mode share | ~15% |
| Perplexity share | ~8% |
| Microsoft Copilot share | ~6% |
| Gemini share | ~5% |
| Claude (web) share | ~3% |
| Grok share | ~2% |
| Average sources cited per AI answer | 3–5 |
| Share of citations from Reddit + YouTube + Wikipedia | 30–40% |
| US adults 18–34 using generative AI search weekly | ~52% |
| Median citation rate for non-optimized brands | <1% |
| Top-quartile citation rate for GEO-optimized brands | 5–15% |
| Avg. weeks to first ChatGPT citation after GEO launch | 2–6 weeks |