KesterleyWhat AI says about you

Industry reportAI availabilityEmail marketing platformsAugust 2026

What AI tells email marketing buyers

Choosing an email platform is one of the most AI-researched purchases in marketing: low stakes to ask about, high stakes to switch later. We recorded 1,005 assistant answers to the questions those buyers ask. The result is the most fragmented category we have measured, the clearest case of fame without preference, and the one category where the machines' sources are not what anyone assumes.

Executive summary
N=1,005r=0.94

Who the machines recommend

Exhibit 1Share of recommendations
N=1,005Aug 2026r=0.94
Six brands within six points, and a famous name that wins nothing
Klaviyo16.7 %
Mailchimp16.7 %
Kit15.0 %
MailerLite12.7 %
Brevo12.3 %
ActiveCampaign11.4 %
Omnisend7.1 %
Beehiiv6.0 %
Constant Contact1.9 %
GetResponse0.1 %
MEMORYSEARCHGRID 2.1 PPNUMBER = SHARE FROM MEMORY

Share of all brand recommendations across eight buying situations, from memory and with web search. The overall race is tight; the separation lives in the situations below.

Finding 1: no category king, only situation kings

Exhibit 2Who owns which buying situation
Memory modeShare of answers per situation
No category king, only situation kings
FIRST TOOLBESTECOMBUDGETCREATORAUTOMATIONOUTGROWNDELIVERY
Klaviyo4899100967173
Mailchimp9386628034366251
Kit799461100226148
MailerLite948298184633
Brevo88702198205417
ActiveCampaign9229925456
Omnisend44991823
Beehiiv3810029
Constant Contact26
GetResponse
0100CELLS UNDER 15 SHOW TINT ONLY

Situations: FIRST TOOL a first email tool for a small business, BEST the best platform overall, ECOM email for an online store, BUDGET free or cheap plans, CREATOR a newsletter as a creator, AUTOMATION advanced automation, OUTGROWN outgrowing the current tool, DELIVERY deliverability.

Memory mode. This is the cleanest situational segmentation we have measured anywhere: the machines have sorted the category into lanes and they rarely mix them. For a buyer, that means the first question they type decides which market they enter. For a vendor, it means growth is not a share-of-voice campaign; it is a decision about which of these eight doors to fight for, against a named incumbent at a known strength.

Finding 2: Mailchimp, famous everywhere, first nowhere

Two decades of brand building bought Mailchimp the only full-coverage profile in the category, and no throne. Where the money is, it trails the specialists badly: 34 percent with creators, 36 percent on advanced automation, 62 percent in e-commerce. And its share falls hardest of anyone when assistants read today's web before answering, which means the current internet is actively steering the machines toward the specialists. Fame still opens the door; it no longer closes the deal. For a board, the strategic question is which two of these lanes Mailchimp intends to re-earn, because eight-at-mediocre is losing to one-at-total everywhere in this table.

Finding 3: the legacy shelf is being cleared

GetResponse has sold email marketing for over twenty years and appears in 0.1 percent of the machines' recommendations, clearing our noise floor in zero of eight situations. Constant Contact sits at 1.9 percent. The machines learned this category from the recent internet, and the recent internet has moved on. Search mode barely helps either brand, so nothing is currently renting that visibility back. This is what erasure looks like in the new channel, and it happened without either company doing anything wrong except standing still.

Finding 4: the answers run through affiliate reviewers, not vendors

In our CRM and HR reports, the machines' top sources were the vendors' own websites. Email marketing breaks the pattern: the most cited sources are third-party review sites, led by emailtooltester.com (60 citations) and emailvendorselection.com (53), ahead of most vendors' own pages. The machines have, in effect, outsourced this category's judgment to a comparison layer.

That changes what money should buy here. In HR, a vendor feeds the machines by publishing its own answers. In email marketing, presence and accurate, current representation on a short list of specific review sites is worth more than another blog post, and that list is not a guess: we observed it, per situation, in the citations themselves.

What we would do about it

A taste of the advisory layer, one line per seat at the table:

The paid version is specific to you: your numbers per situation, the false claims AI makes about you, the exact reviewer pages to fix and earn, priorities with owners, and the tactics to skip. That is the audit, and the 30-day program that ships it.

How we measured

ChatGPT, Gemini and Claude, queried through their official developer interfaces in August 2026, in the model tiers most buyers actually use. 1,005 recorded answers across eight buying situations, in two modes: from memory and with web search. The design was frozen and hashed before the first question; measurement stability r = 0.94, and differences under 15 points per situation are noise, treated as such. Definitions, limits and the pre-registration protocol: methodology v0.2. The brands measured did not participate in, commission, or endorse this report, and we never sell placement in AI answers. Commissioned audits never change published scores.


Your brand, these numbers

If you sell email marketing software, your situational profile, the claims AI gets wrong about you and your citation map already sit in this dataset; a deep dive is available on request via contact. For any other category, the audit runs this exact measurement for your brand and competitors: €399, five business days.