Vantage research · November 2026 · Customer support
What AI cites for “best knowledge base software”
ChatGPT cited 10 sites, Gemini cited 9 sites, Perplexity cited 10 sites. No site was cited by all three.
Updated monthlyNext edition 1 December 2026
ChatGPTGeminiPerplexity dots beside a site: the other engines that cite it too
ChatGPT
10 sites · opens with a sentence · has a table · opening 26 words
- notion.com
- document360.com
- getguru.com
- atlassian.com
- slite.com
- zendesk.com
- helpjuice.com
- helpscout.com
- helpdocs.io
- dupple.com
Brands namedNotion, Document360, Guru, Confluence, Slite, Zendesk, Helpjuice, Help Scout
Gemini
9 sites · opens with a sentence · no table · opening 25 words
- slite.com
- eesel.ai
- assembly.com
- stonly.com
- kmslh.com
- iternal.ai
- technicalwriterhq.com
- gartner.com
- perfectwikiforteams.com
Brands namedNotion, Confluence, Guru, Slite, Document360, Zendesk Guide, GitBook
Perplexity
10 sites · opens with a sentence · has a table · opening 10 words
- helpscout.com
- albato.com
- zendesk.com
- peoplemanagingpeople.com
- learn.g2.comcommunity
- document360.com
- nuclino.com
- helpdocs.io
- softwareadvice.com
- clickup.com
Brands namednone
Cited by more than one engine
- document360.com
- slite.com
- zendesk.com
- helpscout.com
- helpdocs.io
Is your site one of them?
Ask your AI agent to run Vantage's analyze_citation_coverage for your domain and “best knowledge base software”, on all
three engines, and it will tell you whether you are cited, who is instead, and what changed since your last check.
More Customer support questions
Each engine was asked once, in English, as from the United States, on 2026-11-01. Answers change from run to run, so read this as a snapshot. Download the data.