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Ecommerce marketing · September 2026 Edition

Klaviyo vs Shopify

One of twelve models named Klaviyo first on the direct prompt; zero named Shopify. Klaviyo was named by eleven of the twelve models and Shopify by eleven and Klaviyo carries 45 labels and Shopify 27, so the shares are not directly comparable.

Klaviyo

accepted challenger

Boston, United States, founded 2012. Named in fifteen categories this edition.

Shopify

accepted challenger

Ottawa, Canada, founded 2006. Named in five categories this edition.

First-choice share18%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate18%15%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#2#7A position in a field of 10; printed, not drawn.
Labels4527A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Klaviyo reading right to left. Rank and label count are printed, not drawn.HubSpot Marketing Hub was named alongside these two in nine of the twelve direct answers. HubSpot Marketing Hub vs Klaviyo · HubSpot Marketing Hub vs Shopify · Klaviyo vs Omnisend

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all twelve models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the ecommerce marketing page.

By framing

How many of the twelve models made each the first choice, per way of asking, and how many argued against it.
KlaviyoFirst choices, of twelve modelsShopify
Direct101 against Shopify
Paraphrase101 against Klaviyo
Comparative82
Budget-constrained312 against Klaviyo
Scale-constrained40
Negative105 against Klaviyo · 2 against Shopify
Bars are first choices, 0 to 12 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to twelve.

Every model, every framing

The seventy-two answers behind the chart above, one cell each: where Klaviyo and Shopify stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.1 Fast
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
Klaviyo Shopify first choice named as an alternative argued againstblank: not namedEach cell is one answer, Klaviyo on the left and Shopify on the right.

The direct prompt

The plain question, one answer per model, grouped by where Klaviyo and Shopify stood in it.

Klaviyo first, Shopify an alternative

1 of 12 modelsShopify was named in the answer but not as the choice, or not at all.
GLM 4.7 FlashXKlaviyo alternatives: BigCommerce, HubSpot Marketing Hub, Shopify

Neither was the first choice, one was named

8 of 12 modelsThe answer put something else first and named one of the two as an alternative.
Gemini 3.5 FlashHubSpot Marketing Hub alternatives: ActiveCampaign, Klaviyo, Salesforce Marketing Cloud Account Engagement
Perplexity SonarBigCommerce B2B Edition alternatives: Adobe Commerce, OroCommerce, Shopify
Grok 4.1 FastHubSpot Marketing Hub alternatives: ActiveCampaign, BigCommerce B2B Edition, Klaviyo, Salesforce Marketing Cloud Account Engagement
Mistral SmallBigCommerce B2B Edition, HubSpot Marketing Hub alternatives: ActiveCampaign, Klaviyo, Shopify, VTEX
DeepSeek V4 FlashHubSpot Marketing Hub alternatives: ActiveCampaign, Adobe Commerce, BigCommerce B2B Edition, Klaviyo, Shopify
Llama 4 MaverickBigCommerce alternatives: SCAYLE, Shopify, Shopware, VTEX
Qwen 3.7 FlashBigCommerce B2B Edition, HubSpot Marketing Hub alternatives: ActiveCampaign, Shopify
Kimi K2BigCommerce B2B Edition, HubSpot Marketing Hub alternatives: Klaviyo

Neither was named

3 of 12 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5BigCommerce B2B Edition, HubSpot Marketing Hub alternatives: OroCommerce
GPT-5.4 miniHubSpot Marketing Hub alternatives: Adobe Commerce, BigCommerce, Salesforce B2B Commerce
MiniMax M2.5BigCommerce B2B Edition alternatives: Adobe Commerce, SAP Commerce, Shopify Plus with B2B Suite

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Klaviyo leads by six points.
Klaviyo17%#1 of 12
Shopify12%#5 of 12
The full small business standing →
Mid-marketThe figures above
Klaviyo leads by sixteen points.
Klaviyo18%#2 of 10
Shopify2%#7 of 10
The full mid-market standing →
Enterprise
The order flips: Shopify leads at enterprise.
Shopify7%#4 of 12
Klaviyo4%#7 of 12
The full enterprise standing →

What the models said about Klaviyo

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of four in this category shown.

“Klaviyo — The Most Controversial Right Now ... Trustpilot rating: 1.9/5 ... the worst rating of any major platform researched” DeepSeek V4 Flash · negative prompt · hard negative
“The market leader for Shopify/Shopify Plus environments, but highly capable on other platforms. Incredibly strong for segmentation, ease of use, and fast time-to-value” Gemini 3.5 Flash · scale prompt · first choice
“Klaviyo | Mid-market to Enterprise Brands | Deep native Shopify integrations, highly granular behavioral segmentation, and predictive analytics.” Qwen 3.7 Flash · comparative prompt · first choice
“Klaviyo ⭐ *Best for Data-Driven Ecommerce* ... Most sophisticated predictive analytics and customer data platform for ecommerce” Mistral Small · comparative prompt · first choice

What the models said about Shopify

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. One of one in this category shown.

“Strong Alternative: Shopify Plus ... Limitations: B2B features less mature (no native RFQ, limited approval workflows)” Kimi K2 · direct prompt · soft negative
Also compared

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.