# CallSource: how AI models rank it, October 2026

GTM AI Recommendation Index, October 2026 Edition. Named in 3 judge labels across 1 categories by 3 of 14 models. Page: https://gtm-ai-index.com/vendors/callsource/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| Call tracking platforms | 0% | 61 | 67% | 3 |

## And against it

- "we had two outages within the last year where all of our tracked numbers weren't working due to a system wide outage" (Muse Glimmer 30B, Call tracking)
- "Users have reported system‑wide outages where tracked numbers stopped working" (GLM 4.7 FlashX, Call tracking)

## 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, October 2026 Edition, gtm-ai-index.com.