Directory / Haystack
Haystack
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deepset open Python framework for pipelines, RAG, and agents.
Haystack is an open-source Python framework for LLM pipelines covering retrieval, generation, and agents. deepset sells a commercial platform around the library.
- Model support
- Multi-model
- Deployment
- Self-hosted
- Open source
- Yes
- License
- Apache-2.0
- Pricing model
- Mixed
- Added / updated
- 19 Aug 2026 / 19 Aug 2026
haystack.deepset.ai · Docs · Source
Assessment
Haystack suits teams that want explicit Python pipeline nodes for retrieval and generation. Software-factory control remains outside the framework. The deepset platform is an optional commercial layer.
Strengths
- Readable Apache-2.0 pipelines.
- Model-agnostic and self-hosted.
- Established retrieval and RAG components.
Limitations
- No coding agent or sandbox.
- Agent features require current documentation review.