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Head-to-head · AI Agent Memory Tools

Cognee vs MemOS

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Cognee #5 in AI Agent Memory Tools 7.7/10 Free plan Free plan✓ 3 of 4 features Visit Cognee
MemOS #6 in AI Agent Memory Tools 7.6/10 Free plan Free plan✓ 4 of 4 features Visit MemOS

Cognee leads on 0 checks, MemOS on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCognee · 7.7/10
  • Free planboth
  • Most featuresMemOS · 4 of 4

Cognee scores higher on our rubric for ai agent memory tools: 7.7 against 7.6 out of 10; our editors rank them #5 and #6.

Cognee is the better fit for teams building knowledge-graph agent memory. MemOS is the better fit for projects needing lifecycle-rich multimodal memory.

  • Cognee fits best

    Teams building knowledge-graph agent memory

  • MemOS fits best

    Projects needing lifecycle-rich multimodal memory

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. How we rank.

Side by side

Feature Cognee 7.7/10 Visit ↗ MemOS 7.6/10 Visit ↗
At a glance
Editor score 7.7 7.6
Ranking #5 in AI Agent Memory Tools #6 in AI Agent Memory Tools
Best for Teams building knowledge-graph agent memory Projects needing lifecycle-rich multimodal memory
Pricing model Free plan + paid Free plan + paid
Starting price $1/unit usage-based $19/mo
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Self-hosted Cloud, Self-hosted
Platforms Web Web
Support Email, Community, Docs Community, Docs
Integrations 7 integrations 4 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Cognee 3/4 · MemOS 4/4
Semantic memory ✓ ✓
Episodic memory Not checked yet ✓ (best)
User/profile memory ✓ ✓
Graph-based memory ✓ ✓
Specs
Deployment options Both Both
SDK languages Not checked yet 1
Retention policy Not checked yet Configurable
Our review
Pros
  • Transforms varied data into searchable entities-and-relationships graphs
  • Supports natural-language, temporal, completion, and chunk searches
  • Offers open-source self-hosting plus managed Cognee Cloud
  • Covers semantic, profile, event, graph, tool and multimodal memory
  • Lifecycle controls include merge, archive, expiration and freeze states
  • Cloud and self-hosted deployment with chat and knowledge-base APIs
Cons
  • Usage-based billing can make monthly costs harder to forecast
  • BYOC and dedicated support are available only on Enterprise
  • Graph-centered workflows may exceed the needs of simple memory stores
  • Free and Starter plans list the same feature highlights
  • Dedicated support is listed only for the Pro plan
  • One SDK language is listed in the category specifications
Our verdict

Cognee is an open-source memory engine and knowledge-graph platform for developers building AI agents and other AI applications. It ingests text, documents, and structured data, then processes them into graphs with entities, relationships,…

Read the review →

MemOS is a memory operating system and managed platform for AI applications and agents. It accepts conversations, behavior events, documents, images, skills and tool traces, then extracts, updates, schedules and retrieves memories through…

Read the review →
  1. CogneeAI Agent Memory Tools 7.7Free plan
  2. MemOSAI Agent Memory Tools 7.6Free plan

Strengths and trade-offs

  • Cognee — where it wins

    • Transforms varied data into searchable entities-and-relationships graphs
    • Supports natural-language, temporal, completion, and chunk searches
    • Offers open-source self-hosting plus managed Cognee Cloud

    Where it doesn't

    • Usage-based billing can make monthly costs harder to forecast
    • BYOC and dedicated support are available only on Enterprise
    • Graph-centered workflows may exceed the needs of simple memory stores

  • MemOS — where it wins

    • Covers semantic, profile, event, graph, tool and multimodal memory
    • Lifecycle controls include merge, archive, expiration and freeze states
    • Cloud and self-hosted deployment with chat and knowledge-base APIs

    Where it doesn't

    • Free and Starter plans list the same feature highlights
    • Dedicated support is listed only for the Pro plan
    • One SDK language is listed in the category specifications

More comparisons

All AI agent memory tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update