Haystack

Haystack is an open-source AI orchestration framework focused on production-grade agents and applications. It provides a modular, inspectable architecture to orchestrate retrieval, reasoning, memory, and tool use within AI systems. The framework targets AI engineers, developers, and data scientists seeking fine-grained control over workflows and the ability to test and deploy in real-world environments.

Users leverage Haystack to connect to multiple AI models and data stores, enabling a flexible, vendor-neutral stack. The platform emphasizes visibility, debuggability, and the ability to swap components without rewriting large portions of code. It supports aiming for scalable, production-proofed AI use cases across various industries.

Haystack emphasizes context engineering and tool orchestration as core concepts. It supports multi-step decision flows, standardized interfaces for generators, and a composable pipeline approach that can be inspected and extended.

It highlights the ability to adapt models, data stores, and infrastructure without rebuilding from scratch, and promotes a sovereign approach to AI deployment.

Use cases

• RAG pipelines with various retrieval and generation strategies
• Production-ready AI agents with standardized tool calls
• Multimodal AI applications including image and audio tasks
• Conversational AI with standardized interfaces
• Content generation workflows with template-based prompts