Extend vs Onyx
A data-grounded look at how these two productivity & automation tools stack up — to help you pick the right productivity & automation tool in 2026.
Quick verdict
Onyx takes a 0.2-point lead on our Editor Score. Pick Extend if you want layout-first document parsing API; choose Onyx for hybrid search with advanced RAG and contextual retrieval. On pricing, both ship a free or freemium tier, so you can try each before paying.
Extend vs Onyx at a Glance
| Pricing | Freemium | Freemium |
| Free tier | ||
| Best for | layout-first document parsing API | hybrid search with advanced RAG and contextual retrieval |
Extend
Extend review on AInexfinder — freemium AI tool for Productivity & Automation. Features, pricing notes, and alternatives.
- High reported accuracy on document extraction
- Confidence scoring supports safe production use
- Flexible processing modes and self-hosting option
- Layout-first document parsing API
- Developer- and enterprise-oriented, not a simple consumer app
- Full value requires building workflows and schemas
- Documentation depth varies by topic
Onyx
Open-source AI chat connected to your docs and apps Category: Productivity & Automation.
- Open-source self-hosting for control and data residency
- Strong grounded-answer quality
- Broad connector and model support
- Hybrid search with advanced RAG and contextual retrieval
- Self-hosting and configuration require effort
- Accuracy depends on maintained connectors and permissions
- Team collaboration tools depend on your plan
Which Should You Choose?
Choose Extend if…
- you want layout-first document parsing API
- a free or freemium plan is important
Choose Onyx if…
- you want hybrid search with advanced RAG and contextual retrieval
- a free or freemium plan is important
Extend vs Onyx: The Verdict
It comes down to fit, not a single winner: Extend leans into layout-first document parsing API, while Onyx is built for hybrid search with advanced RAG and contextual retrieval. Weigh features and pricing for your workflow. Both have a free or freemium tier, so spin up each and keep the one that clicks.
Frequently Asked Questions
Is Extend better than Onyx?
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.
What is the difference between Extend and Onyx?
Extend (freemium) is best for layout-first document parsing API, while Onyx (freemium) is best for hybrid search with advanced RAG and contextual retrieval. See the full feature and pricing comparison above.
Is Extend or Onyx cheaper?
Both have paid plans — pricing depends on your usage tier. Open each tool's review for current prices, and watch for free trials.
Which is better for beginners, Extend or Onyx?
Extend 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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About the Authors
AI Tools Comparison Analyst
Olivia runs side-by-side comparisons and benchmarks, digging into pricing, features, and real-world performance so readers can choose between competing AI tools with confidence.
Senior AI Tools Reviewer
Daniel reviews AI tools the slow way — by actually using them on real projects. His reviews cover what works, what breaks, and who each tool is genuinely a good fit for.
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Last updated October 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.