B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
800,000,000
800,000,000 -- user count for ChatGPT (OpenAI) (2026)
OpenAI / ChatGPT has 800 million users.
Attribution:
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Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
800,000,000
Unit
Count
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
365iwebdesign.co.uk
Primary
Tier B
https://www.365iwebdesign.co.uk/news/2026/02/01/chatgpt-ads-60-cpm-uk-businesses/ ↗
Source Article
ChatGPT Ads Go Live at $60 CPM: Why UK Small Businesses Can't Buy In | 365i
OpenAI's ads inside ChatGPT are rolling out to US users this week. Beta advertisers have been testing since 21 January with budgets starting at $1 million each, paying roughly $60 per thousand impressions, triple what Meta charges. If you run a small business in the UK, you cannot buy ChatGPT ads at…
Original Research
365iwebdesign.co.uk
· Original study ↗
Methodology
Platform audience figure cited in article
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
ChatGPT (OpenAI): 800,000,000 user count. Source: 365iwebdesign.co.uk (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/chatgpt-users-800m
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<blockquote cite="https://lighthousedata.io/data/chatgpt-users-800m" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>800,000,000</strong> -- user count for ChatGPT (OpenAI)<br><small>Source: 365iwebdesign.co.uk (2026) · <a href="https://lighthousedata.io/data/chatgpt-users-800m" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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