vioscaleAI
Comparison

Mem0 vs Zep

No clear leader: Zep (58.4) and Mem0 (53.6) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Mem0 full profile →Zep full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Mem054
Zep58
Score
vioscaleAI score
Mem054 / 100medium · 53%
Zep58 / 100medium · 55%
Pricing
Free tier
Mem0✓
Zep✓
Model
Price level
Mem0low
Zephigh
Starting price
Mem0–
Zep$125
Transparent
Mem0✗
Zep✓
Integrations
Count
Mem010
Zep9
Security
Certifications
Gdpr
Mem0✓
Zep✓
Hipaa
Mem0✓
Zep✓
Soc2
Mem0✓
Zep✓
Market
Availability
Content
Faq

Capabilities

Feature-by-feature on the axes that matter for agent memory. “-” means undocumented, not absent.

Capabilities
Architecture model
Mem0Open source self hosted
ZepManaged cloud API
Graph based entity relationship extraction
Mem0✓
Zep✓
Automatic context window rolling summarization
Mem0✓
Zep-
Semantic vs episodic event chronological memory
Mem0✓
Zep✓
Cross session and multi thread user persistence
Mem0✓
Zep✓
Memory conflict resolution and fact updating
Mem0✓
Zep✓
Multi tenant user and agent isolation
Mem0✓
Zep✓
Native langchain and llamaindex memory classes
Mem0-
Zep✓
Time decay and recency weighted retrieval
Mem0✓
Zep✓
Zero data retention and pii redaction layer
Mem0✓
Zep-
SOC2 type ii
Mem0✗
Zep✓
Mit or apache permissive oss license
Mem0✓
Zep✓
Pricing model
Mem0Free open source
ZepUsage based per req

What each one is

The product in its own terms, so the numbers below have context.

Mem0

A persistent memory layer designed for AI agents and applications that automatically extracts, stores, and retrieves contextual information. Supports both open-source self-hosted and managed cloud deployment options.

Independently observed

Zep

Combines data, documents, and conversation history from across your organization into structured knowledge graphs with access controls, allowing AI agents to retrieve the specific information they need for each task.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Mem0

free_open_sourceFree tier

Open source (Apache 2.0 license) with optional managed cloud service

as of verify ↗

Zep

from $125/moUsage-basedFree tier

From $125/month. Free tier with 10,000 credits/month.

  • FreeFree
    • 10,000 credits per month
    • 2 projects
    • 1 Memory MCP Server seat
    • 5 custom entity & edge types
    • Variable rate limits
    • +1 more
  • Flex$125/month with 50,000 credits, then $25 per 10,000 credits
    • 50,000 credits included
    • Auto top-up at 20%, 30-day rollover
    • 600 projects
    • 5 Memory MCP Server seats
    • 10 custom entity & edge types
    • +2 more
  • Flex Plus$375/month with 200,000 credits, then $75 per 40,000 credits
    • 200,000 credits included
    • Auto top-up at 20%, 60-day rollover
    • 1,000 projects
    • 15 Memory MCP Server seats
    • 20 custom entity & edge types
    • +4 more
  • EnterpriseContact sales
    • Custom credits with negotiated rates
    • Guaranteed rate limits with SLA
    • Unlimited projects
    • Custom Memory MCP Server seats
    • SOC 2 Type II and HIPAA BAA
    • +2 more
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Mem0✓
Zep✓
CLI
Mem0✓
Zep✓
Deployment
Cloud / SaaS
Mem0✓
Zep✓
Self-hosted
Mem0✓
Zep✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (3)
  • OpenAI
  • Cursor
  • Claude

Mem0

18 total - 15 not shared
  • Slack
  • Claude Code
  • Linear
  • Zapier
  • n8n
  • ChatGPT
  • Perplexity
  • Vercel AI SDK
  • DeepSeek
  • HuggingFace
  • Windsurf
  • Codex
  • OpenCode
  • OpenClaw
  • Langgraph
Independently observed

Zep

9 total - 6 not shared
  • Azure OpenAI
  • Google Gemini
  • Anthropic
  • Neo4j
  • FalkorDB
  • Amazon Neptune
Independently observed
Still deciding?

Mem0 or Zep: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.