Agent Infrastructure · Head-to-head
Cognee vs mem0
Cognee and mem0 are both agent infrastructure. Cognee is An open-source memory platform that turns documents, code and conversations into a knowledge graph for agents, while mem0 is universal memory layer for AI Agents. Here's an independent, side-by-side look at how they compare — and which fits.
An open-source memory platform that turns documents, code and conversations into a knowledge graph for agents.
Visit Cognee →
Cognee and mem0 are both open-source agent infrastructure you can self-host for free. mem0 has wider GitHub adoption — 66k stars vs 31k. Neither is universally better — pick by fit.
Side by side
| Spec | Cognee | mem0 |
|---|---|---|
| Type | Infrastructure | Infrastructure |
| Model | Open source | Open source |
| Pricing | Open source | Open source |
| GitHub stars | 30,933 | 65,865 |
| Language | Python | Python |
| License | Apache-2.0 | Apache-2.0 |
| Last activity | Sep 2026 | Sep 2026 |
Key differences
- mem0 has wider GitHub adoption — 66k stars vs 31k.
Agents whose memory should be structured around entities and relationships rather than a flat vector store.
Adding a persistent memory layer to agents across sessions and users.
About Cognee
Cognee gives AI agents persistent long-term memory by turning documents, code and conversations into a self-hosted knowledge graph they can search and reuse across sessions. It can start locally without an OpenAI or Anthropic key, using local extraction and embedding models, supports custom data models and ontologies, and targets uses from a shared company-wide memory to memory that carries between agent runs.
Full Cognee profile →Frequently asked
- What's the main difference between Cognee and mem0?
- mem0 has wider GitHub adoption — 66k stars vs 31k.
- Is Cognee or mem0 better?
- Neither is universally better. Cognee is the stronger fit for Agents whose memory should be structured around entities and relationships rather than a flat vector store; mem0 for Adding a persistent memory layer to agents across sessions and users. Use the side-by-side specs to decide by your own constraints.
- Is Cognee or mem0 free?
- Cognee is free to run and self-host; mem0 is free to run and self-host. Both are free to self-host — you only pay for the infrastructure and any model or API usage.
- Which is more popular, Cognee or mem0?
- By GitHub stars — a proxy for open-source adoption — mem0 is ahead (66k vs 31k). Stars measure attention, not necessarily the better fit for you.
More agent infrastructure comparisons
- Browserbase vs mem0
- Browserbase vs Cognee
- mem0 vs Pipecat Cloud
- Cognee vs Pipecat Cloud
- daytona vs mem0
- Cognee vs daytona