LangMem

OrganizationLangChain

Founded2025-02 (SDK launch)

Funding— (LangChain-funded)

CodeMIT · 1.6k★

Library of memory primitives (semantic/episodic/procedural extraction) over any store.

Every number on file

claimed	benchmark	config	runner	status
58.10 ± 0.21	LoCoMo (J)	Mem0's integration, unnamed judge	Mem0 paper	THIRD-PARTY
78.05	LoCoMo	undisclosed	Memori Labs	THIRD-PARTY

LangChain itself has published no numbers. The 20-point gap between two competitor-run measurements is the whole story.

Rows are not comparable — configs differ. A row graduates to a verdict only through a registered re-run. The protocol →