# Cognee vs LightRAG

Cognee is free, with no paid plan attached. LightRAG is free, with no paid plan attached.

| | Cognee | LightRAG |
|---|---|---|
| Pricing | Free | Free |
| Free to start | Yes | Yes |
| Category | AI Agents & Automation | AI Agents & Automation |
| Type | Agent Memory & RAG-as-a-Service | Agent Memory & RAG-as-a-Service |
| Best for | Open-source memory platform that turns data into a knowledge graph plus vectors for agents | Simple, fast graph-based RAG from HKU Data Science lab (EMNLP 2025) |

## FAQ

### Cognee vs LightRAG: what is the difference?

Cognee is free, with no paid plan attached and is listed for open-source memory platform that turns data into a knowledge graph plus vectors for agents. LightRAG is free, with no paid plan attached and is listed for simple, fast graph-based RAG from HKU Data Science lab (EMNLP 2025). Both sit in Agent Memory & RAG-as-a-Service.

### Is Cognee or LightRAG cheaper to start with?

Neither — Cognee and LightRAG are both free, so the choice comes down to capability rather than cost. Both entries list what they uniquely do above.

### Which should I choose, Cognee or LightRAG?

Choose Cognee if you need open-source memory platform that turns data into a knowledge graph plus vectors for agents; choose LightRAG if you need simple, fast graph-based RAG from HKU Data Science lab (EMNLP 2025). Flocci AI Tools does not rank one above the other — it shows both feature sets side by side and lets the requirement decide.

## Related

- [Cognee](https://aitools.flocci.in/tool/cognee)
- [LightRAG](https://aitools.flocci.in/tool/lightrag)
- [Cognee alternatives](https://aitools.flocci.in/alternatives/cognee)
- [LightRAG alternatives](https://aitools.flocci.in/alternatives/lightrag)
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Source: Flocci AI Tools — https://aitools.flocci.in/compare/cognee-vs-lightrag

Facts last verified: October 2026