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See how reviewed tools stack up for your needs. Every value comes from a published JAVIS review.
| Feature / criteria |  Haystack (deepset)AI Data & Retrieval |  LlamaIndexAI Data & Retrieval |
|---|---|---|
| JAVIS Score | 69 / 100 | 87 / 100 |
| Price | Free (open source); Enterprise Platform custom | $50/mo |
| Pricing model | Free + Enterprise | Open source |
| Free tier | — | ✓ Yes |
| Open source | ✕ No | ✓ Yes |
| Our verdict | Free Apache-2.0 Python framework for explicit RAG and agent pipelines; the paid Haystack Enterprise Platform is quote-only and the library removes deprecated features within about a month. | LlamaIndex didn't stay the librarian for your RAG stack. It became a document-parsing vendor with a free framework attached. |
| Last checked | Oct 28, 2026 | Oct 5, 2026 |
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