# HubSpot Marketing Hub vs Klaviyo: which do AI models recommend for ecommerce marketing, October 2026

GTM AI Recommendation Index, October 2026 Edition, Ecommerce marketing. Seven of fourteen models named HubSpot Marketing Hub first on the direct prompt; zero named Klaviyo. Page: https://gtm-ai-index.com/marketing/ecommerce-marketing/hubspot-marketing-hub-vs-klaviyo/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| HubSpot Marketing Hub | 38% | #1 of 13 | 5% | 39 | 14 of 14 |
| Klaviyo | 6% | #3 of 13 | 19% | 52 | 13 of 14 |

## The direct prompt, model by model

- GPT-5.4 mini: hubspot marketing hub first (first choices: HubSpot Marketing Hub) (alternatives: BigCommerce, Bloomreach, Oracle Eloqua, Salesforce Commerce Cloud)
- Gemini 3.5 Flash: hubspot marketing hub first (first choices: HubSpot Marketing Hub) (alternatives: ActiveCampaign, BigCommerce B2B Edition, OroCommerce, Shopify)
- Perplexity Sonar: hubspot marketing hub first (first choices: BigCommerce B2B Edition, HubSpot Marketing Hub) (alternatives: Salesforce B2B Commerce, Salesforce Commerce Cloud)
- Grok 4.20: hubspot marketing hub first (first choices: HubSpot Marketing Hub) (alternatives: ActiveCampaign)
- Qwen 3.7 Flash: hubspot marketing hub first (first choices: HubSpot Marketing Hub) (alternatives: Adobe Marketo Engage, BigCommerce, Salesforce Commerce Cloud, Salesforce Marketing Cloud, Shopify)
- GPT-6 Luna: hubspot marketing hub first (first choices: HubSpot Marketing Hub) (alternatives: Adobe Marketo Engage, Klaviyo)
- Muse Glimmer 30B: hubspot marketing hub first (first choices: HubSpot Marketing Hub) (alternatives: BigCommerce, Klaviyo, Omnisend, Shopify)
- Mistral Small: neither first, one named (first choices: BigCommerce B2B Edition) (alternatives: HubSpot Marketing Hub, Klaviyo, Shopware)
- DeepSeek V4 Flash: neither first, one named (first choices: BigCommerce) (alternatives: HubSpot Marketing Hub, Klaviyo, Shopify, Shopware)
- Kimi K2: neither first, one named (first choices: BigCommerce B2B Edition) (alternatives: HubSpot Marketing Hub, Shopify)
- GLM 4.7 FlashX: neither first, one named (first choices: BigCommerce B2B Edition) (alternatives: Adobe Commerce, HubSpot Marketing Hub, Klaviyo, Shopify Plus with B2B Features)
- MiniMax M2.5: neither first, one named (first choices: BigCommerce B2B Edition) (alternatives: HubSpot Marketing Hub, Shopify)
- Claude Haiku 4.5: neither named (first choices: BigCommerce B2B Edition) (alternatives: OroCommerce, Shopify)
- Llama 4 Maverick: neither named (first choices: BigCommerce B2B Edition, Shopware)

## What the models said about Klaviyo

- "it is generally not recommended as a primary marketing platform for complex B2B companies" (Gemini 3.5 Flash, direct prompt, hard negative)
- "Tools to Avoid for This Use Case - Klaviyo — ... deliberately B2C-focused" (DeepSeek V4 Flash, paraphrase prompt, hard negative)
- "Choose Klaviyo if you have significant revenue and want to maximize the Lifetime Value (LTV) of your existing customers." (Qwen 3.7 Flash, comparative prompt, first choice)
- "stick with well-established names: Shopify, Klaviyo (for email/SMS), Meta Ads, Google Shopping" (MiniMax M2.5, negative prompt, first choice)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.