Compare Captain and Haystack side by side. Both are tools in the RAG Frameworks category.
| Category | RAG Frameworks | RAG Frameworks |
| Pricing | Unknown | Open Source |
| Best For | Teams building AI agents that need accurate knowledge access | Developers who need a modular, composable framework for building production RAG applications |
| Website | runcaptain.com | haystack.deepset.ai |
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Accurate knowledge search that scales for AI agents — production-grade retrieval infrastructure.
Haystack by deepset is an open-source framework for building production-ready RAG pipelines, semantic search, and question answering systems. It provides modular components for document processing, retrieval, and generation with support for multiple LLM providers and vector stores.
Frameworks and tools for building retrieval-augmented generation pipelines—document parsing, chunking, indexing, and query engines that connect LLMs to your data.
Browse all RAG Frameworks tools →