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Onyx and Rossum compared on features, pricing and Editor Score — to help you pick the right productivity & automation tool in 2026.
Quick verdict
Our Editor Score puts Onyx 0.3 points ahead. Pick Onyx if you want hybrid search with advanced RAG and contextual retrieval; choose Rossum for template-free AI extraction across many languages. On pricing, Onyx is the one with a free or freemium plan, so it's the cheaper place to start.
| Pricing | Freemium | Paid |
| Free tier | ||
| Best for | hybrid search with advanced RAG and contextual retrieval | template-free AI extraction across many languages |
Open-source AI chat connected to your docs and apps
AI document processing for transactional workflows
Choose Onyx if…
Choose Rossum if…
There's no one-size answer here: Onyx leans into hybrid search with advanced RAG and contextual retrieval, while Rossum is built for template-free AI extraction across many languages. Weigh features and pricing for your workflow. Onyx is the lower-cost place to start thanks to its free or freemium plan; the other is worth a trial if its feature set fits better.
Neither is universally better — it depends on your budget and which features matter most. The side-by-side breakdown above shows where each one wins.
Onyx (freemium) is best for hybrid search with advanced RAG and contextual retrieval, while Rossum (paid) is best for template-free AI extraction across many languages. See the full feature and pricing comparison above.
Onyx has a free or freemium plan, so it's the cheaper way to start. For paid plans, check each tool's current pricing on its review page.
Onyx is usually the easier starting point thanks to a lower barrier to entry. Beginners should favour a free tier and a simple interface over raw power.
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Last updated August 2026. Comparisons are ranked by our Editor Score (features, value and pricing, blended with verified user reviews where a tool has them) — see our methodology.