Cognita vs Haystack
A side-by-side comparison of two self-hosted self-hosted ai options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Cognita | Haystack |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 15 · At risk | 97 · Excellent |
| Status | Archived | Actively maintained |
| Category | Self-Hosted AI | Self-Hosted AI |
| License | Apache-2.0 | Apache-2.0 |
| Language | Python | Python |
| Setup difficulty | Medium | Medium |
| Min. RAM | 2,048 MB | 2,048 MB |
| Deployment | docker | bare-metal, source, docker |
| GitHub stars | ★ 4,419 | ★ 26,584 |
| First released | 2024 | 2020 |
| Replaces | LangChain | LangChain |
What are Cognita and Haystack?
Cognita
Cognita is an open-source RAG framework that organizes retrieval-augmented generation code into reusable, modular components. It offers a UI for non-technical users and APIs for developers building document-grounded AI applications.
- Modular RAG components
- No-code UI
- Multiple vector store support
- Incremental indexing
Haystack
Haystack is an open-source Python framework for building search, RAG, and agentic LLM applications. It provides composable pipelines connecting models, retrievers, and document stores.
- Composable pipelines
- RAG and agent support
- Many integrations
- Production focus
Cognita vs Haystack: key differences
The biggest difference is maintenance: Cognita's repository is archived and no longer developed, while Haystack is actively maintained. Both projects are written in Python. Haystack is the more established project (first released 2020), while Cognita arrived in 2024. Haystack has the considerably larger community, at 26,584 GitHub stars versus 4,419.
Why pick each one
Choose Cognita if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Active community (4.4k GitHub stars)
- Written in Python
Watch out for
- Younger ecosystem
- Documentation gaps
Choose Haystack if…
- Composable pipeline design
- Production-ready focus
- Many integrations
Watch out for
- Concepts take learning
- Abstractions add overhead
Frequently asked questions
Is Cognita or Haystack better?
Neither is universally better. Haystack has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Cognita and Haystack free and open-source?
Yes. Cognita is licensed under Apache-2.0 and Haystack under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Cognita and Haystack with Docker?
Cognita: yes. Haystack: yes.