Head-to-head · September 2026 snapshot

Mailchimp vs Klaviyo

Klaviyo owns intent-driven queries; Mailchimp holds the budget and startup corner. The overall scores are nearly identical (50 vs 50), but the question themes tell a cleaner story: Klaviyo takes the high-stakes, buyer-ready prompts like best overall, top tools, and enterprise pick, while Mailchimp only wins when the question is constrained by size or cost. Claude is the one model keeping Mailchimp competitive, scoring it at 79 versus Klaviyo's 51 there, but ChatGPT and Gemini both tilt Klaviyo's direction and Mailchimp's first-pick rate of 21% trails Klaviyo's 28%, meaning when a model picks one name to lead with, it more often reaches for Klaviyo.

	Mailchimp	Klaviyo
Visibility Score	50	50
Rank in category	#1	#2
Mention rate	60%	56%
#1 pick rate	21%	28%
Avg. position when named	2.6	2.1

Who each model prefers

ChatGPT

Mailchimp

Klaviyo

Claude

Mailchimp

Klaviyo

Gemini

Mailchimp

Klaviyo

The models split: ChatGPT prefers Klaviyo, Claude prefers Mailchimp, Gemini prefers Klaviyo.

The shape of the fight

Each axis is one of the 8 measured buyer questions; the further out, the more of that question's answers name the brand. Hover an axis for the raw counts. Single-axis gaps ride on 9 answers each, so read the overall shape, not one spike.

MailchimpKlaviyo

The fight, question by question

Mentions out of 9 answers per question. Click any question for the full transcripts.

Question	Mailchimp	Klaviyo	Edge
Best overallWhat's the best email marketing platform?	7	9	Klaviyo
Use-case fitWe run an online store and want automated flows like abandoned cart emails. What should we use?	9	9	even
Top tools in 2026What are the top email marketing tools in 2026?	6	9	Klaviyo
Startup & small teamWhich email platform is best for a small business just getting started?	6	1	Mailchimp
Enterprise pickWhich email marketing platform should a large enterprise standardize on, considering security, compliance, and scale?	0	1	Klaviyo
Feature-led askI want to send a weekly newsletter and simple automations. What do you recommend?	4	1	Mailchimp
If you could pick oneIf you could only pick one email marketing tool, which one and why?	8	9	Klaviyo
Budget & alternativesWhat's the best affordable alternative to the big email marketing platforms?	3	1	Mailchimp

Open this matchup in the compare tool → · Mailchimp brand report · Klaviyo brand report

Measured from 72 fresh answers collected from the models' production APIs in September 2026; rankings change monthly. Neither brand can pay to appear here or to move the numbers. Full recipe on the methodology page.