# Signal: how AI models rank it, November 2026

Gane Index, November 2026 Edition. Named in 11 judge labels across 3 categories by 11 of 14 models. Page: https://www.gane.ai/index/gtm/vendors/signal

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| [In-app messaging and customer communications](https://www.gane.ai/index/gtm/customer/in-app-messaging-and-customer-communications/index.md) | 0% | 19 | 0% | 9 |
| [Identity resolution](https://www.gane.ai/index/gtm/gtm-data/identity-resolution/index.md) | 0% | 65 | 0% | 1 |
| [Tag management](https://www.gane.ai/index/gtm/gtm-data/tag-management/index.md) | 0% | 50 | 100% | 1 |

## What the models said for it

- "Signal ranks as the most private messaging app, utilizing quantum-secure cryptography and collecting only your phone number" (Claude Haiku 4.5, In-app messaging)
- "Signal — E2EE by default, minimal data collection, open-source, highly audited." (GLM 4.7 FlashX, In-app messaging)
- "For sensitive conversations, Signal is generally the safest mainstream default" (Perplexity Sonar, In-app messaging)
- "For highly private everyday conversations, Signal is a reasonable default" (GPT-6 Luna, In-app messaging)

## And against it

- "Be cautious if your primary need is broad tag management—it's more consent-oriented and may lack depth for full TMS" (Grok 4.20, Tag management)

## By model

| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 1 | 0 | 0 | 0 | 1 |
| GPT-5.4 mini | 0 | 0 | 0 | 0 | 0 |
| Gemini 3.5 Flash | 0 | 0 | 0 | 0 | 0 |
| Perplexity Sonar | 1 | 0 | 0 | 0 | 1 |
| Grok 4.20 | 0 | 0 | 0 | 1 | 1 |
| Mistral Small | 0 | 1 | 0 | 0 | 1 |
| DeepSeek V4 Flash | 1 | 0 | 0 | 0 | 1 |
| Llama 4 Maverick | 0 | 0 | 0 | 0 | 0 |
| Qwen 3.7 Flash | 1 | 0 | 0 | 0 | 1 |
| Kimi K2 | 0 | 1 | 0 | 0 | 1 |
| GLM 4.7 FlashX | 1 | 0 | 0 | 0 | 1 |
| MiniMax M2.5 | 1 | 0 | 0 | 0 | 1 |
| GPT-6 Luna | 1 | 0 | 0 | 0 | 1 |
| Muse Glimmer 30B | 0 | 1 | 0 | 0 | 1 |

## Sources returned with these answers

The sites and pages cited by the answers that named Signal, from 26 of the 28 answers that named it (only the models that return a source list).

### Domains cited

- g2.com: 9
- gane.ai/index: 7
- cisa.gov: 5
- observepoint.com: 5
- zenzap.co: 5
- acxiom.com: 4
- mcafee.com: 4
- techradar.com: 4
- bestdevops.com: 3
- forbes.com: 3

### Pages cited

- https://g2.com/categories/identity-resolution: 5
- https://acxiom.com/wp-content/uploads/2025/08/martech-intelligence-report-identity-resolution-platforms.pdf: 4
- https://cisa.gov/sites/default/files/2024-12/guidance-mobile-communications-best-practices.pdf: 4
- https://kaspersky.com/blog/messengers-privacy-rating-2025/54665: 3
- https://mcafee.com/learn/how-secure-is-your-messaging-app: 3
- https://observepoint.com/blog/best-tag-management-systems: 3
- https://omr.com/en/reviews/category/tag-management: 3
- https://pumble.com/learn/communication/best-secure-messaging-apps: 3

## The company

Signal; https://signal.org; founded 2014. From Wikidata, fetched 2026-09-14.

## In its own words

What Signal's own pages state, read 2026-10-05. Stated by the vendor, not checked by the index.

- Positioning: Say "hello" to a different messaging experience. An unexpected focus on privacy, combined with all of the features you expect. (https://signal.org/)
- Price stated: Free for Everyone (https://signal.org/)
- Free plan or trial: Share text, voice messages, photos, videos, GIFs and files for free. (https://signal.org/)

## What it publishes

Every page signal.org exposes, read 2026-09-29: 181 addresses. By kind, pages and the last 90 days:

- blog: 154 pages, 3 in the last 90 days, latest 2026-09-28
- report or ebook: 1 pages, 0 in the last 90 days, latest 2016-07-08
- Recent: 2026-09-28 blog: Backup improvements https://signal.org/blog/backup-improvements/
- Recent: 2026-08-11 blog: Automatic key verification https://signal.org/blog/automatic-key-verification/
- Recent: 2026-08-04 blog: Linked devices and android tablets https://signal.org/blog/linked-devices-and-android-tablets/
- Recent: 2026-03-19 blog: Group member labels https://signal.org/blog/group-member-labels/
- Recent: 2026-01-29 blog: Pinned messages https://signal.org/blog/pinned-messages/
- Recent: 2025-11-19 blog: Polls https://signal.org/blog/polls/

## Record

- Method: https://www.gane.ai/index/gtm/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/gtm.