What Sources Do ChatGPT, Perplexity, Gemini and Google AI Trust for B2B Software Comparisons?
Which sources AI assistants rely on when buyers ask them to compare B2B software and services, based on Jamco PR's October 2026 study of 15 real buying questions and the 552 sources the tools cited.
Want to be in the sources AI tools cite? Jamco PR gets B2B tech companies on publications buyers and AI assistants trust, with guaranteed placements on Business Insider, USA Today and AP News.
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Short answer: for broad "best X" questions, AI assistants lean on third-party articles: about half of the sources in our study were third-party lists. For "X vs Y" comparisons, about 61% of sources were list and comparison articles. Vendors' own pages win only very specific questions (about 77% of sources there), and name checks ("Is company X any good?") lean on reviews.
Full disclosure: Jamco PR ran this study. We asked ChatGPT, Gemini, Perplexity and Google AI Overviews 15 real B2B buying questions in October 2026 and logged every source they cited: 552 in total. The full method and data are in our AI search study.
Which sources win each type of question
| Question type | Example | What the AI tools cite most |
|---|---|---|
| Broad "best X" | "What are the best cybersecurity PR agencies?" | Third-party lists and roundups (about half of sources) |
| "X vs Y" comparison | "Agency A vs Agency B for B2B SaaS" | List and comparison articles (about 61% of sources) |
| Very specific | "Which agency guarantees placements on Business Insider?" | Vendors' own pages (about 77% of sources) |
| Name check | "Is company X any good?" | Reviews and review platforms |
What this means for B2B software and services companies
- To show up in "best X" answers, get named in the third-party lists and comparison articles the AI tools read
- To win "X vs Y" questions, make sure fair comparison pages exist that include you
- To win specific questions, publish pages on your own site that answer one exact question clearly
- To pass name checks, keep reviews recent, specific and consistent with your website
- Coverage on publications people already trust feeds all four
Does Perplexity trust different sources than ChatGPT?
The tools differ in how many sources they show and how they display them, but the pattern by question type held across all four in our study: third-party lists dominate broad questions, comparison articles dominate "X vs Y" questions, and vendor pages win specific ones. Optimise for the question types your buyers ask, not for one tool.
How to get into the sources AI assistants cite
- Find the lists AI tools cite for your category and ask to be considered, on merit
- Publish answer-first pages for the specific questions buyers ask
- Earn coverage on publications buyers and AI tools already trust
- Ask happy customers for reviews on the platforms that show up in name checks
- Check monthly which sources the tools cite for your top buyer questions
Where Jamco PR fits
Jamco PR gets B2B and enterprise tech companies on Business Insider, USA Today, Yahoo Finance, AP News and 35+ publications with guaranteed placements, agreed before you pay, so there is third-party proof for buyers and AI tools to find. Projects start at $5,000.
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Frequently asked questions
What sources does Perplexity trust most for B2B software comparisons?
In Jamco PR's October 2026 study, list and comparison articles made up about 61% of the sources AI assistants (including Perplexity) cited for "X vs Y" comparison questions, and about half of the sources for broad "best X" questions were third-party lists.
Do AI assistants cite vendors' own websites?
Mostly for very specific questions: about 77% of sources for those were vendors' own pages. For broad and comparison questions, third-party articles dominate.
How do I get my company into AI answers for my category?
Get named in the third-party lists and comparison articles the tools read, publish pages that answer specific buyer questions, earn coverage on trusted publications, and keep reviews current.
Where can I see the full data?
The full method and results are published in Jamco PR's AI search study at jamcopr.com/ai-pr-agency-study.
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