Comparison

LangMem vs Mem0

On the evidence we track, Mem0 leads this comparison with a composite score of 54/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
LangMem43
★Mem054
Score
vioscaleAI score
LangMem43 / 100low · 24%
Mem054 / 100medium · 53%
Pricing
Free tier
LangMem✓
Mem0✓
Model
Price level
LangMemfree
Mem0low
Transparent
LangMem✓
Mem0✗
Integrations
Count
LangMem1
Mem010
Security
Certifications
LangMem–
Gdpr
LangMem–
Mem0✓
Hipaa
LangMem–
Mem0✓
Soc2
LangMem–
Mem0✓
Trust center
Adoption
Dependent repos
LangMem0
Mem0–
Github stars
LangMem1,703
Mem0–
Activity
Commits last 30d
LangMem6
Mem0–
License
Spdx
LangMemMIT
Mem0–
Language
Primary
LangMemPython
Mem0–
Content
Faq
LangMem4 items

Capabilities

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

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

What each one is

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

LangMem

LangMem provides tools for AI agents to extract important information from conversations, maintain long-term memory across sessions, and continuously improve their behavior. It offers native integration with LangGraph and works with any storage backend.

Independently observed

Mem0

Leader

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

Pricing

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

LangMem

Open sourceFree tier

Free and open source (MIT license)

as of verify ↗

Mem0

Leader
free_open_sourceFree tier

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

as of verify ↗

Platform & deployment

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

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

Integrations

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

In common (1)
  • LangGraph

LangMem

2 total - 1 not shared
  • GitHub (repository hosting)
Independently observed

Mem0

Leader
18 total - 17 not shared
  • Slack
  • Claude Code
  • Linear
  • Zapier
  • n8n
  • ChatGPT
  • Perplexity
  • Vercel AI SDK
  • DeepSeek
  • OpenAI
  • HuggingFace
  • Cursor
  • Windsurf
  • Codex
  • OpenCode
  • OpenClaw
  • Claude
Independently observed
Still deciding?

LangMem or Mem0: 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.