# Cognee vs Langfuse
_Agent Infrastructure · independent comparison_

> Cognee and Langfuse are both open-source agent infrastructure you can self-host for free. Cognee is written primarily in Python; Langfuse in TypeScript. Neither is universally better — pick by fit.

## Side by side

**Cognee**
- Open source · Infrastructure · 31k★ · Python · Apache-2.0 · active today
- Best for: Agents whose memory should be structured around entities and relationships rather than a flat vector store.
- [listing](https://agentsearchengine.app/agents/cognee) · [official](https://www.cognee.ai)

**Langfuse**
- Open source · Infrastructure · 35k★ · TypeScript · MIT · active today
- Best for: Teams that want production-grade, self-hostable tracing and evals for LLM apps.
- [listing](https://agentsearchengine.app/agents/langfuse) · [official](https://langfuse.com)

## Key differences

- Cognee is written primarily in Python; Langfuse in TypeScript.
- Licensing differs: Cognee is Apache-2.0, Langfuse is MIT.

## Which to choose

**Choose Cognee if:** Agents whose memory should be structured around entities and relationships rather than a flat vector store.

**Choose Langfuse if:** Teams that want production-grade, self-hostable tracing and evals for LLM apps.

## FAQ

**What's the main difference between Cognee and Langfuse?**
Cognee is written primarily in Python; Langfuse in TypeScript.

**Is Cognee or Langfuse 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; Langfuse for Teams that want production-grade, self-hostable tracing and evals for LLM apps. Use the side-by-side specs to decide by your own constraints.

**Is Cognee or Langfuse free?**
Cognee is free to run and self-host; Langfuse 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 Langfuse?**
By GitHub stars — a proxy for open-source adoption — Langfuse is ahead (35k vs 31k). Stars measure attention, not necessarily the better fit for you.

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Source: [Agent Search Engine](https://agentsearchengine.app) — https://agentsearchengine.app/compare/cognee-vs-langfuse