Haystack
The Production-Ready Open Source AI Framework.
Haystack is a customizable open-source AI framework that allows developers to build sophisticated AI applications. Its architecture supports a range of use cases, from simple RAG apps to complex systems, integrating with LLM providers and AI tools. Designed with production in mind, it features fully serializable pipelines for Kubernetes-native workflows and logging and monitoring, facilitating deployments across different cloud environments and on-premises infrastructures.
Haystack Alternatives
Explore 41 products in the Frameworks & Stacks category. View all Haystack alternatives.
LangGraph
Low-level framework for building stateful, long-running AI agents with graph-based orchestration
LangChain
LangChain gives developers a framework to construct LLM‑powered apps easily.
LiteLLM
Unified OpenAI-compatible proxy for 100+ LLM providers with cost tracking and load balancing
Instructor
Structured data extraction from LLMs using Pydantic models with automatic validation and retries
vLLM
High-throughput LLM inference engine with PagedAttention for efficient GPU memory usage
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