A fact-by-fact comparison of edX and PostgreSQL — sourced and dated — plus the part no generic comparison shows: which one AI assistants actually recommend more, engine by engine.
Measured by Orbatormethodology owner Henrik Tellewindow ends Sep 6, 2026
Recommendation share = the % of sampled AI answers, over a 4-week rolling window, that recommend each product. Higher is better.
CLAUDE
edX
0.2%
PostgreSQL
2.6%
GEMINI
edX
0.3%
PostgreSQL
3.9%
GROK
edX
0.4%
PostgreSQL
7.2%
CHATGPT
edX
0.3%
PostgreSQL
2.8%
PERPLEXITY
edX
0.3%
PostgreSQL
1.8%
Does AI recommend edX or PostgreSQL more?
PostgreSQL is recommended more often: it appears in 3.2% of sampled AI answers versus 0.3% for edX, measured across the live AI engines over a rolling 4-week window.
Which AI engines were used to compare edX and PostgreSQL?
Recommendation share is measured on CLAUDE, GEMINI, GROK, CHATGPT, PERPLEXITY using neutral, buyer-shaped prompts (no product names), aggregated over a 4-week rolling window. See the methodology for prompt design and sample sizes.
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Recommendation share and entity resolution follow the Index methodology. Facts are sourced from each vendor's own pages and re-verified periodically. Customer status does not affect measurement. Free to use with attribution to orbator.io.
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