B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
26%
26% -- ad presence rate for ChatGPT responses (2026)
Roughly 26% of ChatGPT responses contain an ad.
- Concentrated in the first response of a session
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
26%
Unit
Percentage
Data Vintage
2026
Entity
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
Similarweb
Primary
Tier B
https://www.darkroomagency.com/observatory/how-to-rank-on-chatgpt ↗
Source Article
How to Rank on ChatGPT: 10 Strategies for 2026 | Darkroom
AI TOOLS
How to Rank on ChatGPT: 10 Strategies and Best Practices
Written by Darkroom leardership
Publish date: August 4, 2026
There is no rank in ChatGPT. That is not pedantry; it is the whole strategy, and it is the thing most articles on how to rank on ChatGPT get wrong on the first line.
ChatGPT…
Original Research
Similarweb
· Original study ↗
Methodology
Similarweb 2026 Generative AI Landscape report
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
ChatGPT responses: 26% ad presence rate. Source: Similarweb (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/chatgpt-responses-with-ads-26
HTML Embed
<blockquote cite="https://lighthousedata.io/data/chatgpt-responses-with-ads-26" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>26%</strong> -- ad presence rate for ChatGPT responses<br><small>Source: Similarweb (2026) · <a href="https://lighthousedata.io/data/chatgpt-responses-with-ads-26" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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