Pricing last verified: May 2026. Plans and pricing may change — check the vendor site for current details.
Pricing Overview
Haystack is a fully open-source AI framework released under the Apache 2.0 license, meaning the core framework is free to use, modify, and deploy without licensing fees. Built and maintained by deepset, Haystack provides modular building blocks for RAG pipelines, agentic AI systems, and context-engineered workflows. There is no paid tier for the framework itself — every component, from retrieval to reasoning, ships in the open-source package via pip install haystack-ai.
For teams that want a managed experience, deepset offers deepset Cloud, a commercial platform built on top of Haystack. deepset Cloud handles infrastructure, pipeline orchestration, evaluation, and team collaboration so organizations can skip the DevOps overhead of self-hosting. deepset Cloud pricing is not publicly listed — prospective customers must contact deepset's sales team for a quote tailored to their usage and deployment needs.
Plan Comparison
Because Haystack follows an open-source-plus-commercial-cloud model, the "plans" break down into two tracks:
| Option | Price | What You Get | Best For |
|---|---|---|---|
| Haystack (open source) | $0 | Full framework, all components, community support via GitHub and Discord, Apache 2.0 license | Developers and teams comfortable self-hosting |
| deepset Cloud (managed) | Custom quote | Managed pipelines, built-in evaluation, team workspaces, enterprise SSO, SLA-backed support | Organizations needing production SLAs and reduced ops burden |
The open-source path carries zero software cost but requires your own infrastructure — compute, vector databases, and LLM API keys are your responsibility. deepset Cloud bundles infrastructure management and adds collaboration features not available in the open-source version, such as pipeline versioning dashboards and role-based access control.
Hidden Costs and Considerations
While Haystack itself is free, running it in production involves real infrastructure spend:
- LLM API costs: Every call to OpenAI, Anthropic, Cohere, or another provider is billed by the provider. For high-volume RAG pipelines, LLM inference can easily become the largest line item.
- Vector database hosting: Haystack integrates with Qdrant, Weaviate, Pinecone, Milvus, and others — each with its own pricing model.
- Compute: Self-hosted Haystack pipelines need CPU or GPU instances. Kubernetes clusters for production workloads add operational cost.
- deepset Cloud lock-in: Migrating from deepset Cloud back to self-hosted Haystack is straightforward since the pipeline code is compatible, but any Cloud-specific features (evaluation dashboards, team management) would need replacement.
Cost Estimates by Team Size
Since the framework is free, cost scales with infrastructure, not seats:
- Solo developer / prototyping: $0 for Haystack + roughly $20-50/month in LLM API costs and a lightweight vector DB instance. Total: under $50/month.
- Small team (5 engineers): $0 for Haystack + $200-500/month for moderate API usage, a managed vector DB, and a small Kubernetes cluster. Teams wanting to avoid ops may prefer deepset Cloud at this stage.
- Mid-size team (20 people): $0 for Haystack + $1,000-3,000/month for high-throughput LLM calls, production-grade vector search, and monitoring. At this scale, the build-vs-buy decision between self-hosting and deepset Cloud becomes critical — deepset Cloud's managed infrastructure can offset 1-2 full-time DevOps salaries.
How Haystack Pricing Compares
Most AI agent and RAG frameworks in this category follow a similar open-source-core model:
- LangChain offers its framework for free and sells LangSmith (observability platform) starting at $0 per seat for the Developer plan and $39 per seat for the Plus plan. Like deepset Cloud, the commercial product targets teams that need production tooling on top of the open-source framework.
- AgentVault takes a freemium approach with a free self-hosted option (MIT license), a $0 Starter plan, a $49/month Pro plan, and a $199/month Enterprise tier — giving it more granular paid tiers than Haystack's binary free-or-custom-quote model.
Haystack's advantage is zero friction to start: no sign-up, no API key from deepset, no usage caps. The trade-off is that when you outgrow self-hosting, deepset Cloud pricing is opaque until you engage sales — unlike competitors with published tier pricing.