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The most visible B2B email marketing tools on ChatGPT, October 2026

October 2026 · 12 questions asked in English, worldwide · ChatGPT · 24 answers read

Where engines disagree most

One engine

This page reads ChatGPT only. Set Engine to All to compare them.

Brands

Rank Brand Heralded Score Mentioned Recommended By engine Mentioned by Change
1#1 overall Mailchimp US 81 , range 67–90 79% 58% First reading
2#2 overall Brevo FR 78 , range 61–88 75% 54% First reading
3#3 overall ActiveCampaign US 74 , range 51–85 63% 54% First reading
4#4 overall Klaviyo US 72 , range 48–83 58% 50% First reading
5#5 overall Kit US 65 , range 43–79 58% 38% First reading
6#6 overall MailerLite LT 55 , range 39–76 50% 33% First reading
7#7 overall Omnisend LT 44 , range 32–69 38% 25% First reading
8#8 overall beehiiv US 34 , range 19–50 21% 17% First reading
9#9 overall Drip US 23 , range 11–42 13% 8% First reading
10#10 overall Constant Contact US 23 , range 12–42 17% 4% First reading

“=” marks brands whose score ranges overlap, so the test cannot separate them. Every brand named in at least three answers is ranked. By engine has one dot per engine (ChatGPT, Google AI Overviews, Gemini and Google AI Mode), darker the more often it names the brand.

Most cited sources

Rank Source Type Cited in Engines Pages cited Brands its pages mention
11Withheld. Run a full Snapshot to see it.
12 cleverreach.com Brand site 8.3% 1 of 4 4 0
13 dupple.com Media 12.5% 1 of 4 2 0
14 rapidmail.com Vendor site 8.3% 1 of 4 2 0
15 rework.com Media 12.5% 1 of 4 2 0
16Withheld. Run a full Snapshot to see it.
17Withheld. Run a full Snapshot to see it.
18Withheld. Run a full Snapshot to see it.
19 wordstream.com Vendor site 12.5% 1 of 4 1 0
20 capterra.com Review site 8.3% 1 of 4 2 0

The questions, and who wins each

QuestionLanguageWins it
email marketing software with the best support English ActiveCampaign and Kit, tied
which email marketing software do experts recommend English ActiveCampaign, Brevo, Kit, Klaviyo, Mailchimp and MailerLite, tied

Each engine's top three

Method

Each month Heralded asks every engine the same buyer questions, twice each, and reads every answer. An answer counts 0 for a brand it leaves out, 50 for a brand it names and 100 for a brand it recommends, and the Heralded Score is built from those. A brand named in at least three answers gets a score and a place.

How the leaderboards are measured