Best AI Knowledge Base Software in 2026
Updated
In short: Nuclino is ranked #1 of 36 as of 4 October 2026, ahead of ProProfs Knowledge Base and GitBook. The best-ranked option with a free plan is ProProfs Knowledge Base. The lowest first paid tier on this page is Slite at $0.83/mo.
AI knowledge base software organizes information and can make it available through AI answer features. Compare AI answer mode with supported content and source connectors to see what material each option can work with. Content sync and permission controls offer further points to consider when managing information and access, while included users can clarify plan scope. Free-plan availability and paid-from pricing help you weigh access and cost. The ranking starts with Sana AI, Nuclino, and Elium, followed by GitBook and ProProfs Knowledge Base. Consider how the listed features align with the way you want to manage and make knowledge available.
36 AI knowledge base software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
#1 Nuclino Top pick · 7.4 Free plan · Free
#2 ProProfs Knowledge Base Runner-up · 7.4 Free plan · $0.99/mo
#3 GitBook Also great · 6.9 Free plan · $65/mo
- Free planFree trial AndroidapiiOSLinuxmacOSWebWindows
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - Free planFree trial AndroidapiextensioniOSWebWindows
- Free plan
- Yes
- Paid from
- 0.99 /user/mo
RecognisedDocumentedFree planPlatforms$0.99/mofirst paid tier About ProProfs Knowledge BaseVisit site - Free planFree trial apiWeb
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms$65/mofirst paid tier About GitBookVisit site - Free plan AndroidapiextensioniOSWeb
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms$10/mofirst paid tier About RecallVisit site - Free plan apiextensionmacOSWebWindows
- Free plan
- Yes
- Paid from
- 13 /user/mo
RecognisedDocumentedFree planPlatforms$1,713/mofirst paid tier About ScribeVisit site - Free plan apiself-hostedWeb
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms$49/mofirst paid tier About DocsBot AIVisit site - Free plan iOSWeb
- Free plan
- Yes
- AI answer mode
- both
- Permission controls
- advanced
- Content sync
- realtime
RecognisedDocumentedFree planPlatforms$30/mofirst paid tier About Sana AIVisit site - Free plan WebWindowsmacOS
- Free plan
- Yes
- Paid from
- 6.67 /user/mo
RecognisedDocumentedFree planPlatforms$6.67/mofirst paid tier About SlabVisit site - Free planFree trial apiself-hostedWeb
- Free plan
- Yes
- Paid from
- 6 /user/mo
RecognisedDocumentedFree planPlatforms - Free trial AndroidapiextensioniOSmacOSWebWindows
- Free plan
- No
- Paid from
- 10 /user/mo
RecognisedDocumentedFree planPlatforms$0.83/mofirst paid tier About SliteVisit site - WebWindowsmacOSLinux
- Free plan
- No
RecognisedDocumentedFree planPlatforms$80/mofirst paid tier About ArchbeeVisit site - Free trial AndroidapiextensioniOSself-hostedWeb
- Free plan
- No
RecognisedDocumentedFree planPlatforms€15/mofirst paid tier About EliumVisit site - Free plan Web
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- No
RecognisedDocumentedFree planPlatforms$100/mofirst paid tier About KnowledgeOwlVisit site - Web
- Free plan
- No
- AI answer mode
- both
- Permission controls
- basic
- Content sync
- realtime
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- Yes
- AI answer mode
- both
- Permission controls
- advanced
- Content sync
- scheduled
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- No
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- No
- Paid from
- 8 /user/mo
RecognisedDocumentedFree planPlatforms$8/mofirst paid tier About TettraVisit site - Web
- Free plan
- No
RecognisedDocumentedFree planPlatforms -
- Free plan
- No
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- No
RecognisedDocumentedFree planPlatforms$99/mofirst paid tier About CustomGPT.aiVisit site - WebRecognisedDocumentedFree planPlatforms
- Web
- AI answer mode
- both
- Permission controls
- role_based
- Content sync
- realtime
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- Yes
- AI answer mode
- both
- Source connectors
- 3 connectors
- Permission controls
- role_based
- Content sync
- realtime
RecognisedDocumentedFree planPlatforms - Web
- AI answer mode
- both
- Permission controls
- advanced
- Content sync
- realtime
RecognisedDocumentedFree planPlatforms
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which AI knowledge base software is ranked first on Everything Xiaomi?
Nuclino is ranked #1 of 36 with a score of 7.4. ProProfs Knowledge Base is second and GitBook third.
How many of these have a free plan?
10 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Slite has the lowest first paid tier we found: $0.83/mo.
How is this list ranked?
Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on. Paid placements never change a rank.