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Metis Suite vs Gmail with Gemini
Gmail with Gemini is Google's hosted mail with a Gemini side panel that summarizes, drafts, searches and, after you confirm, archives or labels mail; fuller Gemini features come with Google AI plans or Google Workspace. Metis Suite is an open-source client that works with your Gmail account alongside Outlook, Zoho Mail, IMAP, other calendars and file servers, and its AI runs on the model you choose. You keep Gmail as your provider either way.
Gmail with Gemini facts checked on October 21, 2026
| Feature | Metis Suite | Gmail with Gemini |
|---|---|---|
| License | Open source, AGPL-3.0-or-later Source | Proprietary Source |
| Self-hosting | Yes, with Docker Compose on your own Linux server, or run for you on Metis Cloud Source | No, Google-hosted only Source |
| Mail accounts | Gmail, Microsoft 365 and Outlook.com, Zoho Mail, and IMAP servers the instance owner adds Source | Gmail and Workspace accounts; the mobile apps add other IMAP accounts, while the web drops POP fetching and Gmailify Source |
| Calendar | Google Calendar, Outlook, Zoho Calendar and CalDAV in one view, with editing and RSVPs Source | Google Calendar in Gmail's side panel; Gemini can create events Source |
| Files and drives | Google Drive, OneDrive, S3, WebDAV, FTP and SFTP in one explorer, with previews Source | No file browser in Gmail; Google Drive is a separate app Source |
| AI assistant | One agent across mail, calendars and drives; sending, deleting and every calendar, drive or workflow change waits for your approval Source | Gemini side panel summarizes, drafts and searches, and archives, deletes or labels after you confirm Source |
| AI model | Bring your own: OpenAI, Anthropic or any OpenAI-compatible endpoint, including one you run yourself Source | Google's Gemini models only Source |
| MCP | Built-in MCP server with OAuth for Claude, Cursor, Codex and VS Code; sending and deleting stay off until you enable them Source | Workspace MCP servers in Developer Preview, with a Google Cloud project Source |
| Automation | Visual workflows on new mail, a schedule, a manual run or before a send, with AI Ask and Branch steps Source | Gmail filters; Workspace Studio agents for business customers Source |
| Apps | Web; desktop apps for macOS, Windows and Linux; an Android app; no iPhone app Source | Web, Android, iPhone and iPad Source |
| Price | Free to self-host; Metis Cloud from $10 a month billed yearly, or $12 monthly, per instance | Free Gmail includes AI summaries; more with Google AI plans from $4.99 a month or Workspace from $7 per user a month Source |
Choose Gmail with Gemini if
Everything you use is in Google, and you are happy with Gemini as the only model.
Choose Metis Suite if
You also use Outlook, Zoho, IMAP or your own servers, want to choose the AI model, or want to self-host the client.
Gmail with Gemini is made by Google. Every fact about it on this page comes from its own website, documentation or source code, as linked, and was checked on October 21, 2026. Products change: if something here is out of date, write to contact@astraqcyberdefence.com and we will correct it. All trademarks belong to their owners.