B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
46.4%
46.4% -- ai assistant usage share for ChatGPT (2026-05)
By the end of May 2026, ChatGPT accounted for 46.4 percent of measured AI assistant usage.
- Based on Sensor Tower measured assistant usage data reported via TechCrunch
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
46.4%
Unit
Percentage
Data Vintage
2026-05
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
45
Freshness
95
Source
Sensor Tower
Primary
Tier C
https://www.honeyb.ai/blog/what-does-perplexity-mean ↗
Source Article
What Does Perplexity Mean? The Word, the AI, and Why It Matters
The word perplexity has quietly acquired three separate lives. In ordinary English it names a state of confusion, the feeling you get when something is too tangled to follow. In machine learning it is a precise statistical measure of how well a language model predicts text. And since 2022 it has als…
Original Research
Sensor Tower
· Original study ↗
Methodology
Sensor Tower measured assistant usage data, reported via TechCrunch
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
ChatGPT: 46.4% ai assistant usage share. Source: Sensor Tower (2026-05). Via Lighthouse Intelligence -- https://lighthousedata.io/data/chatgpt-assistant-usage-share-may-2026
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<blockquote cite="https://lighthousedata.io/data/chatgpt-assistant-usage-share-may-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>46.4%</strong> -- ai assistant usage share for ChatGPT<br><small>Source: Sensor Tower (2026-05) · <a href="https://lighthousedata.io/data/chatgpt-assistant-usage-share-may-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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