Side by side
GAIA vs Mem Agent
Both stand on ai personal assistants. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Web
GAIA combines communication, calendar, task, and workflow actions in a web service with a free plan and a $30.00 monthly GAIA plan.
Visit GAIA
Free plan APIExtensioniPhone+3
Mem combines workspace search, note tools, voice capture, and several integrations. Review its monthly activity allowances and AI-processing privacy details before choosing a plan.
Visit Mem AgentThe facts
| GAIA | Mem Agent | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Web | API, Extension, iPhone, Mac, Web, Windows |
| Lowest paid plan | GAIA: $30 a month | Mem Plus: $9 a month |
| Plans published | 2 | 9 |
| Maker | Not published | Not published |
| Website | heygaia.io | mem.ai |
| On ai personal assistants | #41 of 53 | #10 of 53 |
GAIA: what it does well
- Inbox triage and drafted replies each morning
- Meeting briefs and calendar reminders
- Works on todos, not only tracking
- Persistent memory and long-running jobs
- Connects with 50 apps
What to know first
- No mobile apps listed
- Paid GAIA plan bills monthly
Mem Agent: what it does well
- Deep Search accepts natural-language descriptions.
- Voice Mode turns recordings into structured notes.
- One-click Markdown export for notes and collections.
- Mem says it does not sell user data or show third-party ads.
- Connects with Google Calendar, Outlook, and Claude.
What to know first
- The browser extension is available only for Google Chrome.
- Calendar views show only meetings with two or more guests.
- Content is unencrypted during third-party AI processing.
- Free plan allows 25 messages and 25 new notes monthly.
Alternatives to GAIA Alternatives to Mem Agent The whole list