Haystack
Haystack is an end-to-end LLM framework facilitating the construction of applications powered by LLMs, Transformer models, vector search, and more, offering flexibility, transparency, and extensibility, with features including retrieval-augmented generation, document search, question answering, and semantic search, along with a diverse user base including companies like Airbus, Apple, and Netflix
Where it fits
Haystack is listed in Development Frameworks. Use its original project documentation to confirm the features and setup for your intended workflow.
Choose the foundations for an agent application: model integrations, orchestration and the developer tools around them. Your team's language, workflow complexity and operating environment are useful starting points.
Before you choose
Use these category-level questions when reviewing this resource. They do not assert that this project supports a particular feature.
- Does the framework fit your language and deployment runtime?
- How will a failed run resume without repeating side effects?
- Can you test the workflow with your own examples?
Sources & project links
About this listing
Imported directory snapshot · 2026-10-26. The description and classification come from the earlier directory, adapted from awesome-ai-agents; current project behavior has not been independently tested.
Pricing, licensing, supported models and hosting requirements may change. Check the original project before installing or paying. Inclusion is not an endorsement or a performance rating.
Historical repository popularity
The old directory displayed 26.6k GitHub stars. Its original observation date is unknown. This is retained as historical context, not a live count or quality score.