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Ecommerce marketing · September 2026 Edition

HubSpot Marketing Hub vs Klaviyo

Eight of twelve models named HubSpot Marketing Hub first on the direct prompt; one named Klaviyo. HubSpot Marketing Hub was named by twelve of the twelve models and Klaviyo by eleven and HubSpot Marketing Hub carries 34 labels and Klaviyo 45, so the shares are not directly comparable.

HubSpot Marketing Hub

endorsed leader

By HubSpot, Cambridge, United States, founded 2006. Named in fifteen categories this edition.

Klaviyo

accepted challenger

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

First-choice share36%18%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.

Negative rate15%18%Negative labels as a share of the product's labels, 0 to 100.

Rank in category#1#2A position in a field of 10; printed, not drawn.

Labels3445A count; the two differ.

The two percentage rows are drawn on one 0 to 100 track, HubSpot Marketing Hub reading right to left. Rank and label count are printed, not drawn.BigCommerce B2B Edition was named alongside these two in eight of the twelve direct answers. HubSpot Marketing Hub vs Omnisend · 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.

HubSpot Marketing HubFirst choices, of twelve modelsKlaviyo

Direct81

Paraphrase1011 against Klaviyo

Comparative082 against HubSpot Marketing Hub

Budget-constrained031 against HubSpot Marketing Hub · 2 against Klaviyo

Scale-constrained04

Negative012 against HubSpot Marketing Hub · 5 against Klaviyo

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.

The direct prompt

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

HubSpot Marketing Hub first, Klaviyo an alternative

8 of 12 modelsKlaviyo was named in the answer but not as the choice, or not at all.

Claude Haiku 4.5BigCommerce B2B Edition, HubSpot Marketing Hub alternatives: OroCommerce

GPT-5.4 miniHubSpot Marketing Hub alternatives: Adobe Commerce, BigCommerce, Salesforce B2B Commerce

Gemini 3.5 FlashHubSpot Marketing Hub alternatives: ActiveCampaign, Klaviyo, Salesforce Marketing Cloud Account Engagement

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

Qwen 3.7 FlashBigCommerce B2B Edition, HubSpot Marketing Hub alternatives: ActiveCampaign, Shopify

Kimi K2BigCommerce B2B Edition, HubSpot Marketing Hub alternatives: Klaviyo

Klaviyo first, HubSpot Marketing Hub an alternative

1 of 12 modelsHubSpot Marketing Hub 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 named

3 of 12 modelsThe answer made no first choice from these two in this category.

Perplexity SonarBigCommerce B2B Edition alternatives: Adobe Commerce, OroCommerce, Shopify

Llama 4 MaverickBigCommerce alternatives: SCAYLE, Shopify, Shopware, VTEX

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

Level: the same share of first choices.

HubSpot Marketing Hub#2 of 12

Klaviyo#1 of 12

The full small business standing →

Mid-marketThe figures above

HubSpot Marketing Hub leads by eighteen points.

HubSpot Marketing Hub#1 of 10

Klaviyo#2 of 10

The full mid-market standing →

Enterprise

HubSpot Marketing Hub leads by two points.

HubSpot Marketing Hub#6 of 12

Klaviyo#7 of 12

The full enterprise standing →

What the models said about HubSpot Marketing Hub

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

“the best choice is usually HubSpot Marketing Hub if you want the strongest balance of ease of use, B2B automation, CRM integration, and speed to value” GPT-5.4 mini · direct prompt · first choice

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

Also compared

HubSpot Marketing Hub vs Omnisend Klaviyo vs Omnisend The full ecommerce marketing standing

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