Haystack
An enterprise-focused framework from deepset for building production RAG and search systems. Its modular pipeline architecture and evaluation tools make it a solid choice for serious, maintainable deployments, and it runs with local models.
Strengths
- Clear, modular pipeline design suited to production systems
- Strong evaluation and observability tooling
- Works with local models and local vector stores
Weaknesses
- The pipeline structure is more upfront work than a quick script
- A smaller community than LangChain or LlamaIndex
- Aimed at production, so it can feel heavy for prototypes
At a glance
- Licence
- Apache 2.0
- Pricing
- Open core
- Platforms
- macOS, Windows, Linux
- GPU required
- No
Links
Works with
Entry last verified 30 July 2026.