# Mem0 vs Graphiti (Zep): 2026 Empirical Benchmark & Cost Shootout

> **Direct Answer (October 2026 Verdict)**: Mem0 wins on 3-line hybrid vector+graph memory SDK ergonomics and 82% prompt token reduction across multi-session chat (94.5), while Graphiti wins on bi-temporal edge invalidation and point-in-time fact reasoning (93.0).

- **Category**: Agent Memory Layer vs Temporal Knowledge Graph
- **Canonical URL**: https://exactbaseline.com/vs/mem0-vs-graphiti
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## Mem0 Key Advantages
- 67k+ GitHub stars; drop-in user, session, and agent memory layer for OpenAI, LangGraph, and CrewAI
- Cuts multi-turn conversation token spend by 82% vs full-history context stuffing
- Hybrid vector + Neo4j/Memgraph relational entity extraction out of the box

## Graphiti (Zep) Key Advantages
- 31.8k+ GitHub stars; bi-temporal graph tracks both when an event occurred and when it was ingested
- Sub-65ms incremental graph updates without recomputing the entire knowledge graph
- Eliminates stale-fact hallucinations when user preferences or enterprise states change over time