Haystack vs Rivet
A side-by-side comparison of two self-hosted self-hosted ai options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Haystack | Rivet |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 97 · Excellent | 80 · Excellent |
| Category | Self-Hosted AI | Self-Hosted AI |
| License | Apache-2.0 | MIT |
| Language | Python | TypeScript |
| Setup difficulty | Medium | Medium |
| Min. RAM | 2,048 MB | 1,024 MB |
| Deployment | bare-metal, source, docker | binary, bare-metal |
| GitHub stars | ★ 26,584 | ★ 4,698 |
| First released | 2020 | 2023 |
| Replaces | LangChain | LangChain |
What are Haystack and Rivet?
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
Rivet
Rivet is an open-source desktop application for visually creating and debugging complex LLM prompt graphs. It lets developers design AI agents as node graphs and embed them into applications.
- Visual prompt graphs
- Live debugging
- Embeddable runtime
- Many LLM integrations
Haystack vs Rivet: key differences
Haystack is written in Python, while Rivet is built with TypeScript. Licensing differs — Apache-2.0 for Haystack versus MIT for Rivet. Rivet is the lighter option, starting around 1,024 MB of RAM against 2,048 MB for Haystack. Haystack is the more established project (first released 2020), while Rivet arrived in 2023. Haystack has the considerably larger community, at 26,584 GitHub stars versus 4,698. Haystack lists first-class Docker deployment; Rivet does not.
Why pick each one
Choose Haystack if…
- Composable pipeline design
- Production-ready focus
- Many integrations
Watch out for
- Concepts take learning
- Abstractions add overhead
Choose Rivet if…
- Released under the MIT license
- Active community (4.7k GitHub stars)
- Written in TypeScript
Frequently asked questions
Is Haystack or Rivet 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 Haystack and Rivet free and open-source?
Yes. Haystack is licensed under Apache-2.0 and Rivet under MIT. Both can be self-hosted at no software cost.
Can I run Haystack and Rivet with Docker?
Haystack: yes. Rivet: check the project docs for container support.
Which is lighter on resources, Haystack or Rivet?
Rivet has the smaller minimum footprint at 1,024 MB of RAM, compared to about 2,048 MB for Haystack. Real-world usage depends on library size, user count, and enabled features.