Open-source memory systems
What’s out there.
Mem0 · Letta · Zep — each handles memory differently. Vector-only, OS-style, long-term — comparison.
Mem0
Letta
Zep🚧 Detailed write-up coming. For the parent section see /memory/.
Read next
Back to Memory The section overview.
Architecture & Code How we built it.
Six layers overview The whole substrate at a glance.