B
Evidence Grade B
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Recent
80%
80% -- ai search market share for ChatGPT (2025)
ChatGPT commands roughly 80% of the AI search market share according to Search Engine Journal data.
- Approximate figure ('roughly 80%')
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
80%
Unit
Percentage
Data Vintage
2025
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
50
Freshness
95
Source
Search Engine Journal
Primary
Tier C
https://www.thinkcapadvisors.com/blogss ↗
Source Article
Knowledge is gold
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Fractional CMO Services: The Full-Time Shift
Every fractional CMO engagement that works eventually reaches the same decision point. The company outgrows the model that got it here. That's not a failure of the fractional approach — it's the logical conclusion. A fractional CMO is brought …
Original Research
Search Engine Journal
· Original study ↗
Methodology
Approximate figure cited from searchenginejournal.com; original methodology not stated
Methodology documented
Trend Over Time
| Period | Value | Change |
|---|---|---|
| 2025 (current) | 80% | |
| 2025 (current) | 59.2% | -26.0% |
| 2025 (current) | 77.6% | +31.1% |
| 2026 | 78.16% | +0.7% |
| 2026 | 80.1% | +2.5% |
| 2026 | 60% | -25.1% |
| 2026 | 59.9% | -0.2% |
Segmentation
Industrymarketing
Cite this stat
Plain Text
ChatGPT: 80% ai search market share. Source: Search Engine Journal (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/chatgpt-ai-search-market-share-2025
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<blockquote cite="https://lighthousedata.io/data/chatgpt-ai-search-market-share-2025" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>80%</strong> -- ai search market share for ChatGPT<br><small>Source: Search Engine Journal (2025) · <a href="https://lighthousedata.io/data/chatgpt-ai-search-market-share-2025" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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