AI Index / Knowledge base software

Best Knowledge base software

What AI assistants actually recommend when buyers ask about knowledge base software — measured on a rolling 4-week window across 4 engines, published as open data.

Updated 2026-09-17 · 28 sampled answers · rolling 4-week window · methodology

Rankings are measured from sampled AI answers — never editorial, never paid. Orbator builds AI-visibility tooling; when Orbator itself appears in any category, it is measured by the same rules as everyone else.

Rolling 4-week window28 samples4 enginesmethodologydata studies

Measured by Orbatormethodology owner Henrik Tellewindow ends Sep 17, 2026

Sample: 28 AI answers · Window: Aug 20, 2026Sep 17, 2026 (4-week rolling) · trend vs prior 4 weeks (56 answers)

Samples by engine: GEMINI 7 (last run Aug 22, 2026) · CHATGPT 7 (last run Aug 22, 2026) · CLAUDE 7 (last run Aug 23, 2026) · PERPLEXITY 7 (last run Aug 22, 2026) · GROK 0 (last run Jul 31, 2026 — stalest)

How these numbers are made: sampling design · prompt provenance · what counts as a mention · what we cannot see

On the record: This ranking is frozen as a dated snapshot every day. View this category's history to see what entered and left the ranking and when, or read what the engines actually said on a given day.

What is the best knowledge base software?

Across 28 sampled AI answers from 4 engines, Zendesk is recommended most often — appearing in 57.1% of recommendations, followed by Document360 (50%) and Help Scout (42.9%).

This is a measurement of share of voice across 4 AI engines — not an editorial pick. See the full ranking below.

How this ranking is measured

Orbator asked Gemini, ChatGPT, Claude and Perplexity buyer questions about knowledge base software and sampled 28 answers between Aug 20, 2026 and Sep 17, 2026. Recommendation share counts the answers that recommended or listed a product, so a passing mention or a warning adds nothing to it. A category publishes once it holds at least 20 independently sampled answers in the window. Read the full methodology or download this ranking as CSV.

recommendedlistedneutral mentionwarned againstRecommendation share counts answers that recommend or list it — neutral mentions and warnings shown for transparency
#ProductShareTrendEngines
1

zendesk.com

57.1%

95% CI 39.173.5%

16 mentions · avg pos 5.9

first pick 6.3%

GEMINI 57.1%CHATGPT 57.1%CLAUDE 57.1%PERPLEXITY 57.1%
Claim
Pricing: Support Team: $19 a month ↗ source · verified Sep 5, 2026
Features: Email and ticketing system ↗ source · verified Sep 5, 2026
Platforms: Web ↗ source · verified Sep 5, 2026
Integrations: Forethought ↗ source · verified Sep 5, 2026
2

document360.com

50%

95% CI 32.667.4%

14 mentions · avg pos 6.7

first pick 14.3%

GEMINI 57.1%CHATGPT 57.1%CLAUDE 42.9%PERPLEXITY 42.9%
Claim
Features: Knowledge base ↗ source · verified Sep 5, 2026
Integrations: Freshdesk ↗ source · verified Sep 5, 2026
3

helpscout.com

42.9%

95% CI 26.560.9%

12 mentions · avg pos 7.4

first pick 25%

GEMINI 57.1%CHATGPT 28.6%CLAUDE 28.6%PERPLEXITY 57.1%
Claim
Pricing: AI Answers Add-on: $0.75 a month (free tier available) ↗ source · verified Sep 5, 2026
Features: Company management ↗ source · verified Sep 5, 2026
Platforms: API ↗ source · verified Sep 5, 2026
Integrations: Shopify ↗ source · verified Sep 5, 2026
4

intercom.com

39.3%

95% CI 23.657.6%

11 mentions · avg pos 6.8

first pick 18.2%

GEMINI 42.9%CHATGPT 57.1%CLAUDE 14.3%PERPLEXITY 42.9%
Claim
Pricing: Essential: $29 a month ↗ source · verified Sep 5, 2026
Features: Fin AI Agent ↗ source · verified Sep 5, 2026
Platforms: Slack ↗ source · verified Sep 5, 2026
Integrations: Github ↗ source · verified Sep 5, 2026
5

notion.so

39.3%

95% CI 23.657.6%

11 mentions · avg pos 7.4

first pick 0%

GEMINI 57.1%CHATGPT 42.9%CLAUDE 28.6%PERPLEXITY 28.6%
Claim
6
Confluence

32.1%

95% CI 17.950.7%

9 mentions · avg pos 7.6

first pick 11.1%

GEMINI 42.9%CHATGPT 28.6%CLAUDE 42.9%PERPLEXITY 14.3%
Claim
7
Helpjuice

25%

95% CI 12.743.4%

7 mentions · avg pos 6.8

first pick 0%

GEMINI 28.6%CHATGPT 14.3%CLAUDE 42.9%PERPLEXITY 14.3%
Claim
8

fin.ai

25%

95% CI 12.743.4%

7 mentions · avg pos 7.7

first pick 14.3%

GEMINI 28.6%CHATGPT 42.9%CLAUDE 14.3%PERPLEXITY 14.3%
Claim
9

getguru.com

25%

95% CI 12.743.4%

7 mentions · avg pos 7.8

first pick 0%

GEMINI 28.6%CHATGPT 28.6%CLAUDE 14.3%PERPLEXITY 28.6%
Claim
Features: Automated knowledge quality & maintenance ↗ source · verified Sep 5, 2026
Platforms: Slack ↗ source · verified Sep 5, 2026
Integrations: Slack ↗ source · verified Sep 5, 2026
10

freshdesk.com

25%

95% CI 12.743.4%

7 mentions · avg pos 8.7

first pick 0%

GEMINI 42.9%CLAUDE 28.6%PERPLEXITY 28.6%
Claim
11

slite.com

21.4%

95% CI 10.239.5%

6 mentions · avg pos 8.2

first pick 0%

GEMINI 28.6%CHATGPT 28.6%CLAUDE 14.3%PERPLEXITY 14.3%
Claim
Pricing: Basic: $10 a month ↗ source · verified Sep 5, 2026
Features: Real-time collaborative editor ↗ source · verified Sep 5, 2026
Platforms: API ↗ source · verified Sep 5, 2026
Integrations: GitHub ↗ source · verified Sep 5, 2026
12

nuclino.com

17.9%

95% CI 7.935.6%

5 mentions · avg pos 7.4

first pick 20%

GEMINI 28.6%CHATGPT 14.3%CLAUDE 14.3%PERPLEXITY 14.3%
Claim
Pricing: Free ↗ source · verified Sep 5, 2026
Features: Publish as website ↗ source · verified Sep 5, 2026
Platforms: Web ↗ source · verified Sep 5, 2026
Integrations: Slack ↗ source · verified Sep 5, 2026
13

gitbook.com

17.9%

95% CI 7.935.6%

5 mentions · avg pos 8.2

first pick 20%

GEMINI 28.6%CHATGPT 28.6%PERPLEXITY 14.3%
Claim
14

bookstackapp.com

14.3%

95% CI 5.731.5%

4 mentions · avg pos 1.5

first pick 75%

GEMINI 14.3%CHATGPT 14.3%CLAUDE 14.3%PERPLEXITY 14.3%
Claim
15

tettra.com

14.3%

95% CI 5.731.5%

4 mentions · avg pos 12.5

first pick 0%

GEMINI 28.6%CLAUDE 28.6%
Claim
Pricing: Scaling: $8 a month ↗ source · verified Sep 5, 2026
Features: Team usage analytics ↗ source · verified Sep 5, 2026
Platforms: Slack ↗ source · verified Sep 5, 2026
Integrations: Google Workspace ↗ source · verified Sep 5, 2026
16

glean.com

10.7%

95% CI 3.727.2%

3 mentions · avg pos 1.5

first pick 33.3%

GEMINI 14.3%CHATGPT 14.3%CLAUDE 14.3%
Claim
17

dokuwiki.org

10.7%

95% CI 3.727.2%

3 mentions · avg pos 2.3

first pick 0%

GEMINI 14.3%CLAUDE 14.3%PERPLEXITY 14.3%
Claim
18

gethelpable.com

10.7%

95% CI 3.727.2%

3 mentions · avg pos 4

first pick 0%

CHATGPT 28.6%PERPLEXITY 14.3%
Claim
19

microsoft.com

10.7%

95% CI 3.727.2%

3 mentions · avg pos 4

first pick 0%

CHATGPT 28.6%PERPLEXITY 14.3%
Claim
Features: cloud storage ↗ source · verified Sep 5, 2026
Platforms: XBOX console ↗ source · verified Sep 5, 2026
20

js.wiki

10.7%

95% CI 3.727.2%

3 mentions · avg pos 4

first pick 0%

CHATGPT 14.3%CLAUDE 14.3%PERPLEXITY 14.3%
Claim
21

docusaurus.io

10.7%

95% CI 3.727.2%

3 mentions · avg pos 6

first pick 0%

GEMINI 14.3%CHATGPT 14.3%PERPLEXITY 14.3%
Claim
22

gleap.io

10.7%

95% CI 3.727.2%

3 mentions · avg pos 6.3

first pick 0%

GEMINI 14.3%PERPLEXITY 28.6%
Claim
23

zoho.com

10.7%

95% CI 3.727.2%

3 mentions · avg pos 6.7

first pick 0%

GEMINI 28.6%CLAUDE 14.3%
Claim
24

mediawiki.org

7.1%

95% CI 222.6%

2 mentions · avg pos 1.5

first pick 50%

GEMINI 14.3%CLAUDE 14.3%
Claim
25

sharepoint.microsoft.com

7.1%

95% CI 222.6%

2 mentions · avg pos 1.5

first pick 50%

CHATGPT 28.6%
Claim
26

text.com

7.1%

95% CI 222.6%

2 mentions · avg pos 4

first pick 0%

GEMINI 14.3%CLAUDE 14.3%
Claim
27

xwiki.com

7.1%

95% CI 222.6%

2 mentions · avg pos 4

first pick 0%

GEMINI 14.3%CLAUDE 14.3%
Claim
28

notion.com

7.1%

95% CI 222.6%

2 mentions · avg pos 4.5

first pick 0%

GEMINI 14.3%CHATGPT 14.3%
Claim
Pricing: Plus: $10 a month (free tier available) ↗ source · verified Sep 5, 2026
Features: Notion Agent ↗ source · verified Sep 5, 2026
Platforms: Desktop ↗ source · verified Sep 5, 2026
Integrations: Google Analytics ↗ source · verified Sep 5, 2026
29

getoutline.com

7.1%

95% CI 222.6%

2 mentions · avg pos 4.5

first pick 0%

CHATGPT 14.3%CLAUDE 14.3%
Claim
30

mintlify.com

7.1%

95% CI 222.6%

2 mentions · avg pos 6

first pick 0%

CHATGPT 14.3%PERPLEXITY 14.3%
Claim
31

mkdocs.org

7.1%

95% CI 222.6%

2 mentions · avg pos 7

first pick 0%

CHATGPT 14.3%PERPLEXITY 14.3%
Claim
32

bloomfire.com

7.1%

95% CI 222.6%

2 mentions · avg pos 8

first pick 50%

GEMINI 14.3%PERPLEXITY 14.3%
Claim
33

helpcenter.io

7.1%

95% CI 222.6%

2 mentions · avg pos 9.5

first pick 0%

GEMINI 14.3%PERPLEXITY 14.3%
Claim
34

stonly.com

7.1%

95% CI 222.6%

2 mentions · avg pos 10

first pick 0%

CLAUDE 14.3%PERPLEXITY 14.3%
Claim
Features: Checklists ↗ source · verified Sep 5, 2026
Integrations: ServiceNow ↗ source · verified Sep 5, 2026
35

knowledgeowl.com

7.1%

95% CI 222.6%

2 mentions · avg pos 15.5

first pick 0%

GEMINI 14.3%CLAUDE 14.3%
Claim
Features: Table of contents ↗ source · verified Sep 5, 2026
Integrations: Confluence ↗ source · verified Sep 5, 2026
36

clickup.com

7.1%

95% CI 222.6%

2 mentions · avg pos 16

first pick 0%

GEMINI 14.3%CLAUDE 14.3%
Claim
37

helpjuice.com

7.1%

95% CI 222.6%

2 mentions · avg pos 17

first pick 0%

GEMINI 14.3%PERPLEXITY 14.3%
Claim
Pricing: Customized Knowledge Base: $249 a month (free tier available) ↗ source · verified Sep 5, 2026
Features: Auto-Updating KB Chrome Extension ↗ source · verified Sep 5, 2026
Platforms: Chrome extension ↗ source · verified Sep 5, 2026
Integrations: Salesforce ↗ source · verified Sep 5, 2026
38

kustomer.com

7.1%

95% CI 222.6%

2 mentions · avg pos 20

first pick 0%

GEMINI 28.6%
Claim
Features: Data Masking ↗ source · verified Sep 5, 2026
Integrations: Facebook ↗ source · verified Sep 5, 2026
39

atlassian.com

7.1%

95% CI 222.6%

2 mentions · avg pos 20

first pick 0%

GEMINI 14.3%PERPLEXITY 14.3%
Claim
40

gorgias.com

7.1%

95% CI 222.6%

2 mentions · avg pos 21

first pick 0%

GEMINI 28.6%
Claim
41

helpdocs.io

7.1%

95% CI 222.6%

2 mentions · avg pos 29

first pick 0%

GEMINI 14.3%PERPLEXITY 14.3%
Claim
Pricing: Sprout: $129 a month ↗ source · verified Sep 5, 2026
Features: Embedded SSO (JWT) ↗ source · verified Sep 5, 2026
Platforms: API ↗ source · verified Sep 5, 2026
Integrations: Crisp ↗ source · verified Sep 5, 2026
42

docsie.io

3.6%

95% CI 0.617.7%

1 mentions · avg pos 1

first pick 100%

CHATGPT 14.3%
Claim
43

docsio.co

3.6%

95% CI 0.617.7%

1 mentions · avg pos 1

first pick 100%

PERPLEXITY 14.3%
Claim
44
KMS Lighthouse

3.6%

95% CI 0.617.7%

1 mentions · avg pos 3

first pick 0%

GEMINI 14.3%
Claim
45

featurebase.app

3.6%

95% CI 0.617.7%

1 mentions · avg pos 6

first pick 0%

PERPLEXITY 14.3%
Claim
46
phpMyFAQ

3.6%

95% CI 0.617.7%

1 mentions · avg pos 6

first pick 0%

GEMINI 14.3%
Claim
47

liveagent.com

3.6%

95% CI 0.617.7%

1 mentions · avg pos 7

first pick 0%

GEMINI 14.3%
Claim
48

readthedocs.org

3.6%

95% CI 0.617.7%

1 mentions · avg pos 7

first pick 0%

GEMINI 14.3%
Claim
49

capacity.com

3.6%

95% CI 0.617.7%

1 mentions · avg pos 8

first pick 0%

GEMINI 14.3%
Claim
50

userguiding.com

3.6%

95% CI 0.617.7%

1 mentions · avg pos 11

first pick 0%

CLAUDE 14.3%
Claim
51

scribe.com

3.6%

95% CI 0.617.7%

1 mentions · avg pos 14

first pick 0%

GEMINI 14.3%
Claim
52

larksuite.com

3.6%

95% CI 0.617.7%

1 mentions · avg pos 15

first pick 0%

GEMINI 14.3%
Claim
53

proprofskb.com

3.6%

95% CI 0.617.7%

1 mentions · avg pos 16

first pick 0%

GEMINI 14.3%
Claim
54

knowmax.com

3.6%

95% CI 0.617.7%

1 mentions · avg pos 21

first pick 0%

GEMINI 14.3%
Claim
55

slab.com

3.6%

95% CI 0.617.7%

1 mentions · avg pos 21

first pick 0%

GEMINI 14.3%
Claim
Pricing: Startup: $6.67 a month (free tier available) ↗ source · verified Sep 5, 2026
Features: Version History ↗ source · verified Sep 5, 2026
Platforms: Chrome Extension ↗ source · verified Sep 5, 2026
Integrations: Google ↗ source · verified Sep 5, 2026
56

frontapp.com

3.6%

95% CI 0.617.7%

1 mentions · avg pos 30

first pick 0%

GEMINI 14.3%
Claim

Reading the numbers: Share is a point estimate on 28 sampled answers, so each row also shows its 95% CI — the Wilson score interval around that share. When two products' intervals overlap, the gap between them isn't statistically meaningful at this sample size. First pick is the share of a product's recommending answers where it was named first, which separates “always mentioned” from “usually the top recommendation”. Full methodology.

Independence: Orbator customers are badged for disclosure. Customer status does not affect prompts, sampling, extraction, or ranking — see the methodology. Your product on this list? Claim it to see the prompts behind your rank and track it weekly.

Watch this category

These rankings move. Get one email a week on who AI recommends in Knowledge base software. No account needed.

Compare the leaders

Head-to-head pages for products ranked in Knowledge base software. Each one sets out sourced facts side by side, plus which product AI assistants recommend more, engine by engine.

What the engines actually said

Every number on this page is measured from sampled answers, and those answers are kept. The archive holds dated excerpts of what each engine answered, never full answers. Read the answer archive for knowledge base software to see the excerpts by date and engine, or view the ranking history to see what entered and left this ranking and when.

Questions buyers ask about Knowledge base software

What is the best knowledge base software?

Across 28 sampled AI answers from 4 engines (Aug 20, 2026 to Sep 17, 2026), Zendesk is recommended most often for knowledge base software, appearing in 57.1% of recommendations, followed by Document360 (50%). This is a measurement of what AI assistants recommend, not an editorial verdict.

What does ChatGPT recommend for knowledge base software?

ChatGPT recommends Zendesk most often for knowledge base software. It appears as a recommendation in 57.1% of ChatGPT's sampled answers in this window (Aug 20, 2026 to Sep 17, 2026). Other engines answer differently. The per-engine breakdown in the ranking shows each one.

How is this measured?

Orbator samples AI answers to buyer questions across 4 engines and counts how often each product is recommended. No product pays for placement. The knowledge base software ranking is based on 28 answers in the current 4-week window (Aug 20, 2026 to Sep 17, 2026). Full methodology is published at https://www.orbator.io/ai-index/methodology.

Compare the top knowledge base software side by side

Verified facts for the most-recommended products — each sourced and dated. No editorial scoring, just the data side by side.

Zendeskzendesk.comDocument360document360.comHelp Scouthelpscout.comIntercomintercom.comGurugetguru.com
PricingSupport Team: $19 a month ↗ sourceverified Sep 5, 2026AI Answers Add-on: $0.75 a month (free tier available) ↗ sourceverified Sep 5, 2026Essential: $29 a month ↗ sourceverified Sep 5, 2026
FeaturesEmail and ticketing system ↗ sourceverified Sep 5, 2026Knowledge base ↗ sourceverified Sep 5, 2026Company management ↗ sourceverified Sep 5, 2026Fin AI Agent ↗ sourceverified Sep 5, 2026Automated knowledge quality & maintenance ↗ sourceverified Sep 5, 2026
PlatformsWeb ↗ sourceverified Sep 5, 2026API ↗ sourceverified Sep 5, 2026Slack ↗ sourceverified Sep 5, 2026Slack ↗ sourceverified Sep 5, 2026
IntegrationsForethought ↗ sourceverified Sep 5, 2026Freshdesk ↗ sourceverified Sep 5, 2026Shopify ↗ sourceverified Sep 5, 2026Github ↗ sourceverified Sep 5, 2026Slack ↗ sourceverified Sep 5, 2026

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