Nysa vs GBrain
GBrain is open-source memory you host and wire up yourself. Nysa is a managed company brain: it records your meetings, enriches them with email and calendar, and gives every agent on your team the same context.
| Feature | Self-hosted GBrain | Nysa |
|---|---|---|
| Meeting recording and transcripts | ✕† | ✓ |
| Meeting enrichment | ✓ | ✓ |
| Email enrichment | ✓ | ✓ |
| Email history enriched on day one* | ✕ | ✓ |
| Calendar enrichment | ✓ | ✓ |
| Calendar history enriched on day one* | ✕† | ✓ |
| A page for every person and company you work with | ✓ | ✓ |
| Every fact cites its source | ✓ | ✓ |
| Shared across the team | ✓ | ✓ |
| Raw email stays private to its owner | ✓ | ✓ |
| Each agent sees only what its teammate can see | ✓ | ✓ |
| MCP for your agents | ✓ | ✓ |
| Agents can write back | ✓ | ✓ |
| Nothing to host | ✕ | ✓ |
Give your team one company brain.
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- ✓ Listed on GBrain's website
- ✕ Not listed
- ✕† Not by default. You can set it up yourself.
Enrichment means facts are extracted into a shared brain, not just searched. * Nysa enriches the last 180 days of email and calendar history when you connect.
Source: GitHub and recipes, gbrain.io · checked September 24, 2026 · Something out of date? hello@usenysa.com