# Signal: how AI models rank it, September 2026

GTM AI Recommendation Index, September 2026 Edition. Named in 9 judge labels across 2 categories by 7 of 12 models. Page: https://gtm-ai-index.com/vendors/signal/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| In-app messaging and customer communications | 0% | 22 | 0% | 6 |
| Tag management | 0% | 56 | 67% | 3 |

## What the models said for it

- "Signal remains the best secure messaging app in 2026 for most people because default end-to-end encryption, open-source review, low data collection" (Claude Haiku 4.5, In-app messaging)
- "Prioritize apps with default E2EE (e.g., Signal tops most privacy scores, collects minimal data)" (Grok 4.1 Fast, In-app messaging)
- "Signal - Best overall privacy, E2EE for everything, minimal data collection" (Mistral Small, In-app messaging)
- "Signal - Gold standard, E2E encrypted by default, open source" (GLM 4.7 FlashX, In-app messaging)

## And against it

- "as a standalone, legacy client-side tag manager, it is functionally obsolete and no longer supported in its original form" (Gemini 3.5 Flash, Tag management)
- "Failed to sustain its identity as a tag manager, and the name/technology was absorbed or decommissioned" (DeepSeek V4 Flash, Tag management)

## 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.