Cobrain vs Alexein
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
| Detail | 
Cobrain | 
Alexein |
|---|---|---|
| What it does | Shared memory for Claude, ChatGPT and your AIs | Memory for AI agents and the people using them |
| Stage | Startup | Not given |
| Founded | 2026 | Not given |
| Based in | IT | Not given |
| Pricing model | Not given | Freemium |
| Pricing | Free: $0, up to 1,000 notes. Pro: $9/month, unlimited notes and shares. Team: $7/seat per month (minimum 3 seats), company brain with multiple admins. | Free: 10,000 events and 1,000 retrievals per month. Starter: $13/month for 50,000 events and 5,000 retrievals. Pro: $100/month for 500,000 events and 50,000 retrievals. Scale: $399/month for 2,500,000 events and 250,000 retrievals. Enterprise: Custom pricing. |
| Key features |
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| What makes it different |
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| Free plan | Not given | Not given |
| Open source | Not given | Not given |
| Platforms | Not given | Not given |
| Public API | Not given | Not given |
| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 5 no change since last check | 10 +7 (up) since last check |
| Trust Flow (Majestic) | 7 | 0 |
| Citation Flow (Majestic) | 27 | 12 |
| Referring domains (Majestic) | 15 | 3 |
4 details filled in for both companies.