Haystack
Haystack is an open-source AI framework for building production-ready agents.
Pricing: open_source — Free and open-source · Visit website
Haystack is a modular and customizable open-source AI framework designed for creating agentic, context-engineered systems. It supports real-world applications through its integration with various tools like OpenAI, Hugging Face, Weaviate, and more. With Haystack, teams can build transparent, context-engineered AI agents that are fully visible and debuggable.
Pros
- Modular framework
- Open architecture
- Vendor-agnostic
Cons
- Steep learning curve
- Requires technical expertise
- Limited documentation
FAQ
Is Haystack open source?
Yes, it is available on GitHub.
What languages does Haystack support?
Primarily Python.
Can I use Haystack for commercial projects?
Yes, it's free and open to commercial use.
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Last updated: 2026-09-09