Data as of Aug 16, 2026 · Based on 3,131,739 AI responses across 10,525 prompts · See how Parse measures this
Mattermostmattermost.comMattermost is an enterprise-grade, self-hosted collaboration platform that enables real-time chat and workflows across on-premises, private cloud, or air-gapped environments with strong data control and security. It offers mission-critical capabilities such as ChatOps, DevSecOps, incident response, playbooks, and AI-assisted automation, integrated with a wide set of tools. It is trusted by governments, critical infrastructure operators, and large enterprises worldwide, providing high availability and governance for secure collaboration.
Tone of voice
72% of how AI describes Mattermost reads positive.
Words AI uses
AI reaches for open-source · self-hosted · secure when it describes Mattermost.
Rivals
Slack is the brand AI weighs against Mattermost most.
Sources
en.wikipedia.org shapes more of what AI says about Mattermost than any other source, at 15% of its citations.
mattermost.com · reddit.com · docs.mattermost.com · opensource.com
The market map
Team Collaboration Chat Platforms →Where AI ranks Mattermost
Excerpts where Mattermost appeared in the AI's answer
Mattermost has conventional threaded discussions, including a unified threads inbox, and supports self-hosted deployments.
Mattermost: Traditional Slack-like collapsible threads. You can reply directly to any message to spin off a focused side-conversation
Excerpts where Mattermost appeared in the AI's answer
Mattermost is probably the easiest transition if your team already knows Slack.
Mattermost is the best overall Slack alternative for technical and DevOps teams.
Excerpts where Mattermost appeared in the AI's answer
Mattermost - The premier choice for self-hosted, high-security, and open-source needs .
Mattermost or Rocket.Chat — Best for security-sensitive, developer, or enterprise teams requiring self-hosting and total data control
Excerpts where Mattermost appeared in the AI's answer
Mattermost is an open-source, highly customizable alternative that lets you dial in notifications and structure channels strictly
Mattermost: An open-source, highly customizable messaging platform geared toward technical and high-security teams.
Excerpts where Mattermost appeared in the AI's answer
Mattermost - Core approach: An open-source, highly customizable platform with explicit focus on persistent, high-context threaded messaging
Mattermost : An open-source, highly secure, and self-hostable platform that supports persistent threaded channels
Excerpts where Mattermost appeared in the AI's answer
Mattermost / Rocket.Chat (combined with Pexip/Jitsi) : For enterprises requiring self-hosted or air-gapped infrastructure, open-source chat and collaboration platforms like Mattermost and Rocket.Chat can integrate with secure video layers like Pexip.
