Observed arrival · 2026-09-19
SOV Meter: The AI Recommendation Index for Japanese RPO Firms
A monthly index measuring which Japanese recruitment-outsourcing companies appear in answers from ChatGPT, Claude, Perplexity, and Gemini.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Japanese companies monitoring AI visibility and RPO buyers
- Worth noticing
- The September edition records 2,833 source references across 171 listed firms.
Field notes
The index separates overall mentions from first-position appearances and from model-specific results, making several kinds of AI visibility visible at once. Its September page reports that the four models’ top-five lists overlapped by an average of 41%, while only two companies appeared in every model’s top five. The project also applies pairwise McNemar tests when deciding whether adjacent ranking positions should be treated as distinct.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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