tools
Haystack Review 2026 — Production-Grade RAG Framework by deepset
Haystack by deepset is the open-source NLP framework for production RAG pipelines. Pipeline-as-YAML, 50+ integrations, built-in evaluation. Free Apache 2.0 license.

In inglese
Haystack lets developers compose explicit pipelines from retrievers, routers, memory layers, tools, evaluators, and generators. It supports agents, retrieval-augmented generation, multimodal applications, semantic search, question answering, and text-to-SQL.
AI engineers, developers, and data scientists use it to build and deploy customizable AI systems. The open-source framework is free to run but does not include the managed infrastructure, governance, observability, or enterprise support available through Haystack Enterprise Platform.
Features
- Compose modular pipelines for retrieval, routing, memory, tools, evaluation, and generation
- Build multi-step AI agents with explicit tool invocation and reasoning logic
- Create advanced retrieval-augmented generation applications
- Support multimodal applications, semantic search, question answering, and text-to-SQL
- Swap models, providers, data stores, and infrastructure without rewriting applications
- Deploy in cloud or self-hosted environments
- Apache License 2.0 open-source framework
Use cases
- Build enterprise knowledge assistants grounded in internal documents
- Create RAG pipelines for search and question answering
- Develop agents that use tools, memory, and multi-step workflows
- Deploy semantic search across structured and unstructured data
- Test and evaluate AI pipelines before production deployment
Pros
Cons
Latest updates
- Haystack 3.2.0 (3.2.0)
Release notes for Haystack 3.2.0
- Haystack 3.1.1 (3.1.1)
Release notes for Haystack 3.1.1
- Haystack 3.1.0 (3.1.0)
Release notes for Haystack 3.1.0
- Haystack 3.0.0 (3.0.0)
Release notes for Haystack 3.0.0
- Haystack 2.31.0 (2.31.0)
Release notes for Haystack 2.31.0
Capabilities
- Choice of models — “Swap models and components without rewriting your system” source
- Self-hosted — “Run Haystack in your own environment, get dedicated support or extend it with a cloud or self-hosted platform to test, deploy, and operate pipelines at scale.” source
- API — “Serve pipelines as REST APIs or MCP servers with Hayhooks.” source
- Builds agents and workflows — “Haystack is an open-source AI orchestration framework built by deepset , enabling Python developers to build production-ready AI agents, multimodal applications, and advanced RAG systems .” source
- Search over your data — “Build highly performant RAG pipelines with a multitude of retrieval and generation strategies.” source
- Traces and evaluates — “Use tracing , logging , and evaluation tools to monitor retrieval quality, latency, tool usage, and outputs and iteratively refine your system.” source
Get it
Pricing
- Starting price
- Free
- Prices checked
- 2026-09-25
- Read
- by web search
Studio
Free
- 1 workspace
- 1 user
- 100 pipeline hours
- 50 files (max 10MB per file)
- 2 development pipelines
- Cloud deployment; Community support on Discord
Enterprise
Price on request
- Unlimited workspaces, users, files (no size limit)
- Unlimited development and production (high availability) pipelines
- Cloud or custom deployment
- Dedicated account team, solution engineers and private Slack channel
- SSO, Role-Based Access Control
- Custom package