cognee
Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engi
Our verdict
A usable project with some maintenance caveats. This assessment is derived from GitHub's own repository metrics on 2026-08-30, not from hands-on testing.
Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engine. The project is written primarily in Python, released under Apache-2.0, and has 30,346 stars and 2,981 forks on GitHub. 279 contributors have committed to it, and the most recent push was 2026-08-29. The latest tagged release is v1.5.3.dev1 (2026-08-26). Figures come from the GitHub API on 2026-08-30 and are refreshed daily; the score below weighs adoption, maintenance, release discipline, contributor breadth, licence clarity and issue hygiene.
Repository
- Licence
- Apache-2.0
- Language
- Python
- Last push
- 2026-08-29
Releases
-
v1.5.3.dev1v1.5.3.dev1 - Integrations, safety checks, and search improvements -
v1.5.3v1.5.3 - Search relevance & ingestion reliability -
v1.5.2v1.5.2 - Stability & Search Improvements -
v1.5.1v1.5.1 - Stability & Search Improvements -
v1.5.0.dev5v1.5.0.dev5 - Search Relevance & Ingestion Speed -
v1.5.0.dev4v1.5.0.dev4 - Dataset Indexing & Search Relevance
Pros and cons
Pros
Cons
Pricing
- Free tierYes
- LicenceApache-2.0
- Self-hostYes, source is public
- Public price listNot published
cognee does not publish a web price list. For consumer apps that usually means pricing appears inside the product; for enterprise tools it means talking to sales. Why we do this
Visit www.cognee.aiWhat users actually say
- cognee - open-source memory framework for AI Agents Reddit · 2025
- Comparing agent memory kits (Letta, MemOS, Cognee, etc) Reddit · 2025
We link to discussions rather than reproducing them. Opinions belong to their authors.
User reviews
No one has reviewed cognee here yet. Reviews are moderated before they appear, and our own score is editorial and separate from user ratings, though once reviews land they do lift it.
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Side by side
| Tool | Our score | From | Free tier | Best for | |
|---|---|---|---|---|---|
| cognee this page | 7.1 | - | Yes | ||
| Graphify | 7.6 | - | Yes | ||
| LlamaIndex | 7.6 | $1 | Yes | ||
| AnythingLLM | 7.5 | - | Yes | ||
| LightRAG | 7.5 | - | Yes | ||
| Qdrant | 6.8 | - | Yes | ||
| RAGFlow | 6.8 | - | Yes |
Questions
Is cognee free?
Yes. cognee advertises a free tier on its own site.
How much does cognee cost?
cognee does not publish a web price list. For consumer apps that usually means pricing appears inside the product; for enterprise tools it means talking to sales.
Is cognee open source?
Yes. cognee is a public repository released under Apache-2.0. You can self-host or inspect the source directly.
How is cognee scored here?
cognee scores 7.1 out of 10. That comes from a desk review of public evidence, which is capped at 8.5 out of 10: public pricing, documentation, maintenance signals and how much we could actually verify. Affiliate relationships are excluded from scoring entirely. The full rubric is published on our methodology page.