Letta vs mem0

Pick two tools from the same category to compare side-by-side.

	Letta Stateful agent memory framework (formerly MemGPT); core+archival tiers.	mem0 Per-user long-term memory layer for agents with fact extraction.
Category	memory	memory
Vendor type	open source	hybrid
Pricing	freemium	freemium
Strengths	+ Mature memory architecture (core/archival/recall tiers) + Open source with managed option + Designed for long-lived agents	+ Per-user fact extraction out of the box + Managed and self-hostable + Simple API surface
Tradeoffs	− More setup overhead than simple memory layers	− Opinionated extraction may not fit all domains
Used in stacks	0	4