LangMem vs mem0
A side-by-side comparison of LangMem and mem0, two Memory tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
The honest brief
LangMem
Backed by LangChain, its memory tools plug straight into LangGraph rather than running as a standalone store.
- Semantic, episodic, procedural memory
- Storage- and framework-agnostic core API
- Native LangGraph integration
- MIT-licensed and free
- Most value inside the LangChain stack
- Young SDK, evolving API
- You wire up your own storage layer
mem0
Fastest path to agent memory — extracts distilled facts with a tiny token footprint and the biggest community.
- Quick to adopt, broad framework integrations
- Stores distilled facts, small footprint
- Vector + graph + key-value storage
- Open-source with usable free tier
- Weaker on temporal/state-change queries
- LLM call on every write adds latency
- Test deletion/conflict handling for regulated use
- More library than full memory server