September 2026 snapshot · 72 AI answers Contested

Email Marketing: AI Visibility Ranking

Klaviyo is in the Perception Lab → aided, forced-choice, and grounded measurement of what Klaviyo is to the models, beyond this ranking.

Platforms for newsletters, campaigns, and lifecycle email. Right now, Mailchimp is the brand AI assistants recommend most, with a Visibility Score of 50 and the #1 spot in 21% of answers. Head-to-head: Mailchimp vs Klaviyo →

These rankings are measured from what the three models know from training, not a live web search. When the models DO search the web, see which sources they cite. Methodology.

Email marketing AI visibility has no clear front-runner yet.

Mailchimp and Klaviyo sit within half a point of each other, and neither has pulled away enough to be called the default recommendation across models. What makes this messier is how differently each model behaves: Claude pushes Mailchimp hard at 79 while nearly ignoring MailerLite, whereas ChatGPT and Gemini favor MailerLite at 53 and 51 respectively. Kit is a quiet anomaly, mentioned in 54% of answers but never picked first, meaning the models treat it as a supporting reference rather than a lead suggestion.

AI-generated analysis of the September 2026 measurements.

#	Brand	Visibility Score	Trend (3 mo)	Mention rate	Avg. position	#1 pick rate	Models
1	Mailchimp	50 ±4.4	flat	60%	2.6	21%	ChatGPT #3 Claude #1 Gemini #6
2	Klaviyo	50 ±2.9	flat	56%	2.1	28%	ChatGPT #2 Claude #2 Gemini #2
3	MailerLite	43 ±4.9	flat	53%	2.8	17%	ChatGPT #1 Claude #7 Gemini #1
4	Kit	38 ±4.8	flat	54%	4.1	0%	ChatGPT #4 Claude #4 Gemini #3
5	Brevo	32 ±4.2	flat	47%	4.1	6%	ChatGPT #5 Claude #3 Gemini #7
6	ActiveCampaign	26 ±4.3	flat	38%	4.0	6%	ChatGPT #6 Claude #6 Gemini #5
7	HubSpot	23 ±3.9	flat	35%	4.3	1%	ChatGPT #7 Claude #5 Gemini #11
8	Beehiiv	21 ±5.5	flat	29%	3.9	1%	ChatGPT #9 Claude #8 Gemini #4
9	Omnisend	16 ±3.5	flat	24%	4.3	0%	ChatGPT #8 Claude #9 Gemini #8
10	Salesforce Marketing Cloud	13 ±1.1	flat	15%	2.4	13%	ChatGPT #10 Claude #10 Gemini #9
11	Google Workspace	10 ±2.1	▲ 3	11%	1.8	8%	ChatGPT #11 Claude #13 Gemini #10
12	Braze	8 ±1.1	flat	14%	5.1	0%	ChatGPT #14 Claude #12 Gemini #13
13	EmailOctopus	8 ±1	▲ 3	13%	4.8	0%	ChatGPT #13 Claude #14 Gemini #14
14	Microsoft 365	8 ±0	▲ 1	8%	2.0	0%	ChatGPT #12 Claude Gemini #12
15	Adobe Campaign	6 ±3.1	flat	7%	2.4	0%	ChatGPT #15 Claude #11 Gemini #15

The ± under each score is the reliability band: how much the number would move if we re-ran the identical measurement. It is tight because each prompt is sampled multiple times. It is not the same as how much the ranking depends on which prompts we ask — a separate, wider figure shown on hover.

Just below the cutoff: Moosend (5.6), Zoho Mail (5.6), Marketo (5.4), Drip (5.1), Oracle Eloqua (5.1). 51 brands were scored in this category; the leaderboard shows the top 15.

Visibility Score: position-weighted presence across all measured answers, 0 to 100. A score of 100 means the brand was the first recommendation in every answer. Every point in a trend line is a live monthly measurement; there is no modeled or backfilled history. Full methodology.

Openness 50/100: the share of this category's recommendation weight not held by the leader.

Compare brands in Email Marketing head-to-head → · Explore the prompt tree →

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Do the models agree?

Per-model Visibility Scores for the top 10. A long gray bar means the three assistants disagree about the brand. Hover a row for exact values.

ChatGPT Claude Gemini

Where they land in the answer

When a brand is mentioned, where does it appear? Box shows the middle 50% of positions, the thick line is the median, whiskers are the extremes. Hover a row for the detail.