B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
5.2%
5.2% -- outbound click rate for ChatGPT (2025)
ChatGPT produces an outbound click in 5.2% of conversation sessions.
- Preprint, not yet peer reviewed
- US desktop clickstream records only
- Specific to ChatGPT Search conversation sessions
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
5.2%
Unit
Percentage
Data Vintage
2025
Entity
Sample Size
45,386
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Bocconi University (Qiaoni Shi, Kai Zhu, Kai Gu)
Primary
Tier B
https://seohandbook.co.uk/seo-news-updates/chatgpt-search-access-reduces-traditional-search-study/ ↗
Source Article
AI Search Cuts Traditional Search | The SEO Handbook
Study: Wider ChatGPT Search access cuts traditional search by 9.4%
A new working paper puts a causal number on something SEOs have watched build for two years: when people gain access to ChatGPT Search, they run fewer traditional searches, and AI search rarely sends a click back to the web. The pape…
Original Research
Bocconi University (Qiaoni Shi, Kai Zhu, Kai Gu)
· Original study ↗
Methodology
Comscore desktop clickstream data, US users, Oct 2024–Jul 2025
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
ChatGPT: 5.2% outbound click rate. Source: Bocconi University (Qiaoni Shi, Kai Zhu, Kai Gu) (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/chatgpt-outbound-click-rate-5-2
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<blockquote cite="https://lighthousedata.io/data/chatgpt-outbound-click-rate-5-2" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>5.2%</strong> -- outbound click rate for ChatGPT<br><small>Source: Bocconi University (Qiaoni Shi, Kai Zhu, Kai Gu) (2025) · <a href="https://lighthousedata.io/data/chatgpt-outbound-click-rate-5-2" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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