Mainroom vs. Zoom AI Companion, Microsoft Copilot in Teams, and Gemini in Google Meet
The meeting platforms' own assistants summarize and answer questions about the meeting, on their own platform. Mainroom is a participant that works across Meet, Teams and Zoom and acts on the shared screen. A factual comparison.
In one sentence: The native assistants live inside one platform and answer questions about the meeting. Mainroom is a cross-platform participant that speaks, presents and acts.
What they do
- Zoom AI Companion: meeting summaries, in-meeting questions about what was said, and other assistance inside Zoom.
- Microsoft Copilot in Teams: recaps and in-meeting questions inside Teams, with a Microsoft 365 Copilot license.
- Gemini in Google Meet: note-taking and summaries inside Meet for Google Workspace customers.
What Mainroom does
Mainroom builds AI agents that join Google Meet, Microsoft Teams and Zoom as participants from a calendar invite. In the call an agent speaks when addressed, puts slides and tables on the shared screen, teaches on a whiteboard, runs live browser demos the room can steer, looks things up in your tools, opens anonymous intake for the room, logs decisions and commitments as they are confirmed, and coaches the person who invited it privately. After the call it emails a recap and queues proposed actions for approval.
Side by side
| Native assistants | Mainroom | |
|---|---|---|
| Category | Platform-native assistant | AI meeting agent |
| Works on Meet, Teams and Zoom | One platform each | All three, the same agent |
| Appears as a participant with a voice | No (text or panel) | Yes |
| Summaries and recap | Yes | Yes, plus a ledger carried to the next meeting |
| Answers questions about the meeting | Yes, in a panel | Yes, aloud when addressed, or privately on the companion page |
| Shared-screen slides, whiteboard, live demos | No | Yes |
| Lookups in your own tools mid-call | Limited to the vendor's ecosystem | Any MCP server plus web search |
| Anonymous intake for the room | No | Yes |
| Custom persona, manners and tools per agent | No | Yes |
| Requires a platform license | Yes | No; joins from a calendar invite |
| Pricing | Included with or added to the platform plan | Free during beta |
Which to choose
The native assistants are the easiest to turn on if your whole company lives on one platform and what you need is summaries and questions about the transcript. Mainroom is for teams whose meetings span platforms and customers, and who want an agent that does things on the shared screen and in their own tools. The two can coexist: a Mainroom agent is just another participant.
A note on accuracy
Details about other products on this page come from their public product pages as of September 17, 2026 and may have changed; check the vendor's site for current features and pricing. Mainroom details are current as of the same date. Corrections: hello@mainroom.ai.
Frequently asked questions
Can I use a native assistant and Mainroom together?
Yes. A Mainroom agent is one more participant in the meeting and does not need to be the recorder of record. Teams that like their current notetaker keep it.
Does Mainroom produce a transcript and summary too?
Yes. Every call ends with a recap email matched to the agent's role and a ledger of decisions, commitments, open questions and risks that carries to the next meeting with the same people.
Does anything get written to my CRM without approval?
No. Writes to systems of record arrive as proposed actions that the agent's owner approves or discards.