B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
5
5 -- ai recommendation consistency rank for Perplexity (2025)
Perplexity ranked 5th out of 5 AI platforms evaluated (least consistent) for recommendation consistency in a 5-month daily tracking study.
- Tested on a single daily prompt regarding classic movie recommendations over 5 months
- Perplexity occasionally misinterpreted the prompt as asking for AI-themed movies
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
5
Unit
Rank
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
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Trackerly.ai
Primary
Tier A
https://trackerly.ai/blog/non-deterministic-AI-response-study ↗
Source Article
Trackerly.ai - AI Brand Monitoring Tool
Consistently inconsistent: 5-month study of AI's non-deterministic responses
We are witnessing an AI boom where consumers increasingly rely on ChatGPT, Perplexity, and Google Gemini for recommendations. For brands, visibility in these AI responses has become a new frontier of digital marketing. But …
Original Research
Trackerly.ai
· Original study ↗
Methodology
Ranked least consistent (5th of 5 AI platforms) in Trackerly's 5-month daily tracking study, despite being the only platform grounding every response with citations; recommendations fluctuated dramatically and sometimes shifted to AI-themed movies entirely.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Perplexity: 5 ai recommendation consistency rank. Source: Trackerly.ai (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/perplexity-ai-recommendation-consistency-rank
HTML Embed
<blockquote cite="https://lighthousedata.io/data/perplexity-ai-recommendation-consistency-rank" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>5</strong> -- ai recommendation consistency rank for Perplexity<br><small>Source: Trackerly.ai (2025) · <a href="https://lighthousedata.io/data/perplexity-ai-recommendation-consistency-rank" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
Share
Related Statistics
Use this data in your work
Copy the citation, embed the widget, or explore thousands more verified marketing statistics -- all free.