
Haystack is a modular, open-source Python framework for building end-to-end AI applications. It excels at creating production-ready AI agents, advanced Retrieval-Augmented Generation (RAG) pipelines, and scalable multimodal search systems. The framework provides composable components for every step of the AI workflow, from document processing and retrieval to LLM generation and tool use. It integrates freely with major LLM providers (OpenAI, Anthropic, Mistral, Google) and vector databases (Pinecone, Weaviate, Elasticsearch) without vendor lock-in. Haystack is designed for developers and teams who need to move from prototype to production with full transparency, debuggability, and control over their AI orchestration logic.
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Haystack uses a freemium pricing structure. Real-time rates, custom enterprise quotas, and plan details are managed directly on their official platform.
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