B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
45%
45% -- ai generated survey response rate for Survey responses containing open-text answers copied from LLM output (2026-06)
Up to 45% of survey responses contain text copied from an LLM's output according to estimates cited in a Nature feature.
- Upper-bound estimate; overall estimates range from 4% to 45% depending on detection method with no consensus figure established.
Attribution:
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Lighthouse Research Team
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Source verified
Evidence graded
Value
45%
Unit
Percentage
Data Vintage
2026-06
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
35
Freshness
95
Source
Nature
Primary
Tier C
https://surveygauge.com/knowledge/blog/survey-design-best-practices ↗
Source Article
10 Rules for Surveys That Deliver Real Insights
10 Rules for Surveys That Deliver Real Insights
A poorly designed survey is worse than no survey. It gives you confidence in data that is wrong. Here are ten rules that fix the most common mistakes we see in B2B survey programmes.
- Every question you add beyond five costs you 5-10% of your responde…
Original Research
Nature
· Original study ↗
Methodology
Upper-bound estimate cited by a Nature feature; article notes overall estimates range from 4% to 45% depending on detection method and that no consensus figure exists.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Survey responses containing open-text answers copied from LLM output: 45% ai generated survey response rate. Source: Nature (2026-06). Via Lighthouse Intelligence -- https://lighthousedata.io/data/llm-copied-survey-response-upper-estimate
HTML Embed
<blockquote cite="https://lighthousedata.io/data/llm-copied-survey-response-upper-estimate" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>45%</strong> -- ai generated survey response rate for Survey responses containing open-text answers copied from LLM output<br><small>Source: Nature (2026-06) · <a href="https://lighthousedata.io/data/llm-copied-survey-response-upper-estimate" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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