Best Retrieval-Augmented Generation Tools in 2026
Updated
27ranked
0free plans on this page
$700/molowest paid tier
9 Oct 2026last checked
0 of the 2 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 26 | Progress Agentic RAGWeb · Self-hosted · API | One bar | — | — | 1 of 6 | $700/mo | 5.0 |
| 27 | VectaraWeb · Self-hosted · API | One bar | — | — | 1 of 6 | $8333.33/mo | 5.0 |
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