Both are open source memory options with comparable terms, so the choice comes down to which model of the problem you prefer — compare the descriptions below rather than the licence.
Extracts durable facts from conversations and recalls them on the next turn.
A messages table and a summaries table. Boring, auditable, yours.
Start here. Move to a memory product when you can name the query it makes fast.
| Mem0 | Postgres (rolled by hand) | |
|---|---|---|
| Licence | Open source | Open source |
| Pricing | freemium | open source |
| Self-hostable | Yes | Yes |
| Languages | Python, TypeScript | Any language |
| Install | pip install mem0ai | — |
| Keys required | MEM0_API_KEY | None |
Both are open source memory options with comparable terms, so the choice comes down to which model of the problem you prefer — compare the descriptions below rather than the licence. Mem0: Extracts durable facts from conversations and recalls them on the next turn. Postgres (rolled by hand): A messages table and a summaries table. Boring, auditable, yours.
Mem0 can run on your own infrastructure. Postgres (rolled by hand) can run on your own infrastructure.
Mem0 is open source (freemium). Postgres (rolled by hand) is open source (open source).
Every page here answers to Accept: text/markdown and returns the same content at roughly a tenth the tokens. No separate site, no toggle — same URL.
curl -s -H "Accept: text/markdown" https://newagent.build/compare/mem0-vs-postgres-memory