Comparison

Cognee vs LangMem

On the evidence we track, Cognee leads this comparison with a composite score of 83/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Cognee full profile →LangMem full profile →

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★Cognee83

LangMem47

Attribute comparison across 2 tools
Attribute	CogneeLeader	LangMem
Vioscale score	83 / 100low · 37%	47 / 100low · 31%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	freemium	commercial
Price levelpricing.price_level	low	free
Starting pricepricing.starting_price	$5	-
Transparentpricing.transparent	✓	✓
Integrations
Countintegrations.count	27	2
Security
Gdprsecurity.gdpr	✓	-
Vulnerabilitiessecurity.vulnerabilities	-	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=langmem&per_page=100 · Last 12m: 0
Adoption
Dependent reposadoption.dependent_repos	-	0
Github starsadoption.github_stars	-	1,626
Activity
Commits last 30dactivity.commits_last_30d	-	4
License
Spdxlicense.spdx	-	MIT
Language
Primarylanguage.primary	-	Python
Market
Availabilitymarket.availability	Available worldwide · Popular in EU, US · HQ DE	-

Score

Vioscale score

Cognee83 / 100low · 37%

LangMem47 / 100low · 31%

Pricing

Free tier

Cognee✓

LangMem✓

Model

Cogneefreemium

LangMemcommercial

Price level

Cogneelow

LangMemfree

Starting price

Cognee$5

LangMem–

Transparent

Cognee✓

LangMem✓

Integrations

Count

Cognee27

LangMem2

Security

Gdpr

Cognee✓

LangMem–

Vulnerabilities

Cognee–

LangMemCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=langmem&per_page=100 · Last 12m: 0

Adoption

Dependent repos

Cognee–

LangMem0

Github stars

Cognee–

LangMem1,626

Activity

Commits last 30d

Cognee–

LangMem4

License

Spdx

Cognee–

LangMemMIT

Language

Primary

Cognee–

LangMemPython

Market

Availability

CogneeAvailable worldwide · Popular in EU, US · HQ DE

LangMem–

Capabilities

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

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

Capabilities

Architecture model

CogneeOpen source self hosted

LangMemOpen source self hosted

Graph based entity relationship extraction

Cognee✓

LangMem-

Automatic context window rolling summarization

Cognee✓

LangMem-

Semantic vs episodic event chronological memory

Cognee✓

LangMem✓

Cross session and multi thread user persistence

Cognee✓

LangMem✓

Memory conflict resolution and fact updating

Cognee✓

LangMem✓

Multi tenant user and agent isolation

Cognee✓

LangMem-

Native langchain and llamaindex memory classes

Cognee✗

LangMem✓

Time decay and recency weighted retrieval

Cognee✓

LangMem-

Zero data retention and pii redaction layer

Cognee✗

LangMem-

SOC2 type ii

Cognee✗

LangMem-

Mit or apache permissive oss license

Cognee✓

LangMem✓

Pricing model

Cognee-

LangMemFree open source

What each one is

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

Cognee

Leader

Cognee is a graph-based memory engine for AI agents that captures information, organizes it as interconnected knowledge, and enables agents to recall context across conversations. It runs locally, on managed cloud infrastructure, or on-premises with full control over data.

Independently observed

LangMem

Not documented yet.

Pricing

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

Cognee

Leader

from $5/workspace/moHybridFree tier

Free tier (1M tokens/mo). Standard from $5/workspace/mo. Enterprise custom pricing.

FreeFree
- Graph-based memory
- SDK and MCP access
- Agentic integrations (Claude Code, Cursor, Codex)
- Unlimited users and API calls
Standard$5 per workspace/month
- Unlimited workspaces
- Data integrations: Slack, Notion, Google Drive
- In-app support
PremiumCustom pricing with enterprise support
- Dedicated Slack channel
- Dedicated support engineer
- Bring-your-own cloud support
- Support SLA

as of 2026-08-21verify ↗

LangMem

Open sourceFree tier

Free and open source (MIT license)

as of 2026-08-21verify ↗

Platform & deployment

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

Platform and deployment support comparison
Supports	Cognee	LangMem
WebPlatforms	✓	✓
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✗
Self-hostedDeployment	✓	✓
On-premiseDeployment	✓	✗
Air-gappedDeployment	✓	✗

Platforms

Web

Cognee✓

LangMem✓

CLI

Cognee✓

LangMem✓

Deployment

Cloud / SaaS

Cognee✓

LangMem✗

Self-hosted

Cognee✓

LangMem✓

On-premise

Cognee✓

LangMem✗

Air-gapped

Cognee✓

LangMem✗

Integrations

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

In common (1)

LangGraph

Cognee

Leader

27 total - 26 not shared

Claude Code
Cursor
Codex
OpenClaw
CrewAI
n8n
Slack
Notion
Google Drive
Amazon Neptune
Weaviate
Qdrant
Pinecone
Redis
Azure AI Search
Milvus
OpenSearch
Valkey
Memgraph
NetworkX
Google Cloud Spanner
TuringDB
pgGraph
DuckDB
+2 more

Independently observed

LangMem

2 total - 1 not shared

GitHub (repository hosting)

Independently observed

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