Feature Comparison
| Feature | Epitomerecommended | Vertex AI RAG | Mem0 |
|---|---|---|---|
Architecture | |||
| Self-hostable | |||
| Open source | MIT | Partial | |
| Data storage | PostgreSQL + pgvector | Google Cloud Storage | Managed cloud |
| Per-user isolation | Schema-level | Project-level | API key scoped |
Memory Model | |||
| Structured profile | |||
| Confidence scoring | |||
| Memory lifecycle | Promote / demote / decay | Index / remove | Create / delete |
| Semantic search | |||
| Contradiction detection | |||
Knowledge Graph | |||
| Entity extraction | 3 methods (LLM + NER + pattern) | Basic | |
| Typed relationships | Limited | ||
| Graph traversal queries | Recursive CTE | ||
| Entity deduplication | |||
Privacy & Control | |||
| Consent system | Per-tool granular | IAM roles | |
| Audit logging | Limited | ||
| Data export | Full SQL dump | GCS bucket | API export |
| GDPR compliance | |||
Agent Support | |||
| MCP protocol | 9 tools, Streamable HTTP | ||
| Multi-agent memory | Limited | ||
| Context budget ranking | |||
| Memory router (LLM proxy) | |||
Developer Experience | |||
| REST API | |||
| JavaScript SDK | Python only | ||
| Dashboard UI | Full React SPA | GCP Console | Basic web UI |
| Graph visualization | D3.js interactive | ||
Pricing | |||
| Free tier | Unlimited (self-host) | GCP free tier | 1K memories |
| Hosted pricing | From $0/mo | Pay-per-query | From $99/mo |
| Vendor lock-in | None | Google Cloud | High |
Self-hostable
Open source
Data storage
Per-user isolation
Structured profile
Confidence scoring
Memory lifecycle
Semantic search
Contradiction detection
Entity extraction
Typed relationships
Graph traversal queries
Entity deduplication
Consent system
Audit logging
Data export
GDPR compliance
MCP protocol
Multi-agent memory
Context budget ranking
Memory router (LLM proxy)
REST API
JavaScript SDK
Dashboard UI
Graph visualization
Free tier
Hosted pricing
Vendor lock-in
Deep Dive
Epitome builds a persistent identity layer for individuals — profiles, preferences, relationships, and episodic memory. Vertex AI RAG indexes enterprise documents for retrieval. Epitome remembers who you are; Vertex RAG retrieves what you wrote.
Epitome is MIT-licensed and runs anywhere Docker does. Vertex AI RAG is a proprietary Google Cloud service requiring a GCP project, billing account, and vendor commitment. Switching away from Vertex means rebuilding your entire pipeline.
Epitome's granular consent system lets users control exactly which tools each agent can access, with a full audit trail. Vertex RAG relies on GCP IAM — powerful for enterprises, but not designed for individual user consent. Epitome puts the user in control.
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