Thunderdome B2B SaaS AI Visibility Index

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July 2026 snapshot · 72 AI answers Contested

Email Marketing: AI Visibility Ranking

Platforms for newsletters, campaigns, and lifecycle email. Right now, Klaviyo is the brand AI assistants recommend most, with a Visibility Score of 50 and the #1 spot in 24% of answers. Head-to-head: Klaviyo vs Mailchimp →

These rankings are measured from what the three models know from training, not a live web search. The live-web grounded surface is rolling out across the index. Methodology.

Klaviyo leads, but Claude's Mailchimp obsession distorts the whole race.

Mailchimp's Claude score of 73 is the most extreme per-model gap in the dataset, single-handedly inflating its overall rank while Gemini scores it at only 23. Klaviyo is the only brand with relatively consistent recognition across all three models, which makes its lead more durable than the raw scores suggest. Kit is quietly present in 54% of answers yet earns a first-pick rate of only 3%, meaning the models know it but rarely trust it enough to lead with it.

AI-generated analysis of the July 2026 measurements.

# Brand Visibility Score Mention rate Avg. position #1 pick rate Models
1 Klaviyo
50
±3.7
57% 2 24% ChatGPT #1 Claude #2 Gemini #1
2 Mailchimp
46
±6.5
53% 2 21% ChatGPT #2 Claude #1 Gemini #7
3 MailerLite
39
±5.2
50% 3 11% ChatGPT #3 Claude #5 Gemini #3
4 Kit
38
±4.7
54% 4 3% ChatGPT #5 Claude #4 Gemini #2
5 Brevo
34
±5.3
47% 4 7% ChatGPT #4 Claude #3 Gemini #6
6 ActiveCampaign
28
±3.9
43% 5 1% ChatGPT #6 Claude #7 Gemini #4
7 Beehiiv
20
±5.1
26% 3 4% ChatGPT #7 Claude #9 Gemini #5
8 HubSpot
18
±0.5
25% 4 4% ChatGPT #10 Claude #6 Gemini #13
9 Omnisend
15
±2.6
22% 4 0% ChatGPT #8 Claude #8 Gemini #8
10 Salesforce Marketing Cloud
14
±1.5
15% 2 13% ChatGPT #9 Claude #10 Gemini #9
11 Braze
10
±1.7
14% 4 0% ChatGPT #12 Claude #11 Gemini #14
12 Google Workspace
8
±1.1
8% 2 7% ChatGPT #11 Claude Gemini #10
13 Microsoft 365
7
±3.3
8% 2 0% ChatGPT #14 Claude #14 Gemini #11
14 Substack
7
±3.2
10% 4 3% ChatGPT #13 Claude #12 Gemini #15
15 Zoho Mail
7
±3.3
8% 3 0% ChatGPT #15 Claude #13 Gemini #12

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: Adobe Journey Optimizer (6.1), EmailOctopus (5.6), Drip (5.6), Oracle Eloqua (4.7), Sender (4.2). 50 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
0 25 50 75 100 Visibility Score · 0 = never mentioned, 100 = always the first recommendation Klaviyo Mailchimp MailerLite Kit Brevo ActiveCampaign Beehiiv HubSpot Omnisend Salesforce Marketing Cloud

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.

1 2 3 4 5 6 7 8 9 10 Position in the answer · 1 = the first product recommended Klaviyo Mailchimp MailerLite Kit Brevo ActiveCampaign Beehiiv HubSpot Omnisend Salesforce Marketing Cloud

What each model recommends first

ChatGPT

gpt-5.3-chat-latest

1 Klaviyo
45
2 Mailchimp
41
3 MailerLite
39
4 Brevo
36
5 Kit
32

Claude

claude-sonnet-4-6

1 Mailchimp
73
2 Klaviyo
55
3 Brevo
43
4 Kit
36
5 MailerLite
34

Gemini

gemini-3-flash-preview

1 Klaviyo
48
2 Kit
46
3 MailerLite
44
4 ActiveCampaign
30
5 Beehiiv
28

The questions we asked

Each model answered every prompt 3 times in July 2026. Prompts are brand-neutral so no vendor gets seeded into the question.

  1. Best overall
    What's the best email marketing platform? See who wins it →
  2. Use-case fit
    We run an online store and want automated flows like abandoned cart emails. What should we use? See who wins it →
  3. Top tools in 2026
    What are the top email marketing tools in 2026? See who wins it →
  4. Startup & small team
    Which email platform is best for a small business just getting started? See who wins it →
  5. Enterprise pick
    Which email marketing platform should a large enterprise standardize on, considering security, compliance, and scale? See who wins it →
  6. Feature-led ask
    I want to send a weekly newsletter and simple automations. What do you recommend? See who wins it →
  7. If you could pick one
    If you could only pick one email marketing tool, which one and why? See who wins it →
  8. Budget & alternatives
    What's the best affordable alternative to the big email marketing platforms? See who wins it →