# Mattermost: how AI models rank it, September 2026

HR AI Recommendation Index, September 2026 Edition. Named in 4 judge labels across 1 categories by 4 of 12 models. Page: https://hr-ai-index.com/vendors/mattermost/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| Internal communications and intranet | 0% | 26 | 0% | 4 |

## What the models said for it

- "If self-hosting/data sovereignty is key ... Great for control but needs IT overhead." (Grok 4.1 Fast, Internal communications)
- "The High-Security Alternative: Mattermost or Rocket.Chat" (Qwen 3.7 Flash, Internal communications)
- "Best if you need on-premises/self-hosted options" (Claude Haiku 4.5, Internal communications)

## Record

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