# PubMatic: how AI models rank it, September 2026

GTM AI Recommendation Index, September 2026 Edition. Named in 10 judge labels across 3 categories by 7 of 12 models. Page: https://gtm-ai-index.com/vendors/pubmatic/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| Programmatic and display advertising | 0% | 18 | 14% | 7 |
| Video advertising | 0% | 62 | 0% | 2 |
| Identity resolution | 0% | 113 | 0% | 1 |

## What the models said for it

- "Best for: publishers optimizing yield and omnichannel monetization" (GPT-5.4 mini, Programmatic)
- "Open-web, mobile publishers | Global reach; PMPs/deal IDs" (Grok 4.1 Fast, Programmatic)

## And against it

- "SSPs like Magnite, PubMatic, Criteo, Xandr" (Grok 4.1 Fast, Programmatic)

## Record

- Method: https://gtm-ai-index.com/methodology/
- Raw judge labels and full responses: https://gtm-ai-index.com/data/
- License: CC BY 4.0. Cite as GTM AI Recommendation Index, September 2026 Edition, gtm-ai-index.com.