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Zep vs Weaviate
Agent-native side-by-side. Scores are curated estimates on a 0–10 scale. Lock-in: higher = worse. Prefer JTBD picks via /api/decide when choosing for a job.
| Dimension | Zep | Weaviate |
|---|---|---|
| Overall | 7.4 | 8.2 |
| Capability fit | 8.2 | 8.8 |
| Price / performance | 7.0 | 7.5 |
| Latency / reliability | 7.6 | 8.4 |
| Developer & agent DX | 7.8 | 8.2 |
| Privacy / data retention | 7.8 | 8.2 |
| Lock-in risk (higher = worse) | 5.2 | 3.5 |
| Maturity / track record | 7.0 | 8.8 |
| Pricing | As of 2026-10-24 (getzep.com/pricing, fetched 2026-10-24): Temporal knowledge-graph memory (Graphiti). 'Self-serve plans are credit based.' Free: 'Start free with 10,000 credits a month.' ('No rollover or auto-topup.'). … | Open-source + Weaviate Cloud; modular vectorizers; hybrid search; usage/cluster pricing on cloud. |
| Tagline | Pick when agents need temporal/entity graph memory, not just vector snippets. Mem0 for simpler recall. | Best when hybrid search and modularity matter. Cloud for convenience; self-host when lock-in anxiety spikes. |
Zep
Pick when agents need temporal/entity graph memory, not just vector snippets. Mem0 for simpler recall. Strengths: Temporal graph memory; Strong for relational recall; OSS Graphiti path.
Strengths
- Temporal graph memory
- Strong for relational recall
- OSS Graphiti path
Weaknesses
- Credit model needs modeling
- Heavier than Mem0 for simple recall
- Graph ops complexity if self-host
Weaviate
Best when hybrid search and modularity matter. Cloud for convenience; self-host when lock-in anxiety spikes. Strengths: Hybrid search + modules; Open-source escape hatch; Strong RAG feature set.
Strengths
- Hybrid search + modules
- Open-source escape hatch
- Strong RAG feature set
Weaknesses
- Ops complexity self-hosted
- Cloud pricing needs care
- Performance tuning required at scale
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