Forrester vs Gartner: which does AI recommend?

· ChatGPT and Google AI Mode

Based on every AI answer that names bothReviewed by

How we measure

AI summary

The claims treat and as equal overall picks, while answers naming both usually list first.

Listed first when AI names both

ForresterForrester: 20%GartnerGartner: 80% (Gartner leads)

Recommended when named

ForresterForrester: 87%
GartnerGartner: 90%

Pick Gartner for

  • Market entry research Almost always
  • Enterprise market intelligence Almost always
  • Competitive intelligence data Usually

Topic by topic

Mentioned in, as a share of each topic’s answers

About even3Gartner named more5

Gartner named more

About even3

Only Forrester is ranked in2

Only Gartner is ranked in12

What people ask AI about Forrester and Gartner

is listed first slightly more often for a CMO's competitive analysis project. is listed first almost always for a strategy manager's market entry research and enterprise market intelligence tools.

Forrester listed firstGartner listed first
  1. What is the best market research firm for a CMO to engage for a competitive analysis project?Leans Forrester
  2. What is the best market research report provider for a Strategy Manager analyzing new market entry?Gartner almost always first
  3. What are the best market intelligence tools I should consider? We're a Fortune 500Gartner almost always first
  4. What are the best data sources for a pricing analyst to use for competitive intelligence?Gartner usually first

Who AI mentions first

Forrester listed firstGartner listed first

is listed first every month.

  1. JulForrester listed first: 17%Gartner listed first: 83%
  2. AugForrester listed first: 23%Gartner listed first: 78%
  3. SepForrester listed first: 22%Gartner listed first: 78%

When answers name both, every engine leans to . ChatGPT Search and Google AI Mode usually list first, with Google AI Mode leaning more.

  • ChatGPTForrester listed first: 23%Gartner listed first: 77%
  • Google AI ModeForrester listed first: 16%Gartner listed first: 84%

Sources cited in the comparisons

Forrester favouredNeither favouredGartner favoured

Also named alongside Forrester and Gartner

  1. Euromonitor40%
  2. Kantar35%
  3. Ipsos31%
  4. NielsenIQ31%
  5. SimilarWeb27%
  6. IDC24%
  7. Statista24%
  8. AlphaSense22%
  9. Crayon22%
  10. Mintel20%
  11. Klue20%
  12. IBISWorld19%

Forrester vs Gartner: common questions

Is Forrester better than Gartner?
The claims treat Forrester and Gartner as equal overall picks, while answers naming both usually list Gartner first.
Do ChatGPT and Google AI Mode recommend Forrester or Gartner?
When answers name both, every engine leans to Gartner. ChatGPT Search and Google AI Mode usually list Gartner first, with Google AI Mode leaning more.
What are the alternatives to Forrester and Gartner?
AI most often names Euromonitor, Kantar, Ipsos and NielsenIQ in the same answers.
When is Gartner the better pick?
AI usually lists Gartner first for: Market entry research; Enterprise market intelligence; Competitive intelligence data.

Related comparisons

How would your brand compare?

Find out where you stand in AI answers—and who you’re up against.