# Klaviyo vs Shopify: which do AI models recommend for ecommerce marketing, September 2026

GTM AI Recommendation Index, September 2026 Edition, Ecommerce marketing. One of twelve models named Klaviyo first on the direct prompt; zero named Shopify. Page: https://gtm-ai-index.com/marketing/ecommerce-marketing/klaviyo-vs-shopify/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Klaviyo | 18% | #2 of 10 | 18% | 45 | 11 of 12 |
| Shopify | 2% | #7 of 10 | 15% | 27 | 11 of 12 |

## The direct prompt, model by model

- GLM 4.7 FlashX: klaviyo first (first choices: Klaviyo) (alternatives: BigCommerce, HubSpot Marketing Hub, Shopify)
- Gemini 3.5 Flash: neither first, one named (first choices: HubSpot Marketing Hub) (alternatives: ActiveCampaign, Klaviyo, Salesforce Marketing Cloud Account Engagement)
- Perplexity Sonar: neither first, one named (first choices: BigCommerce B2B Edition) (alternatives: Adobe Commerce, OroCommerce, Shopify)
- Grok 4.1 Fast: neither first, one named (first choices: HubSpot Marketing Hub) (alternatives: ActiveCampaign, BigCommerce B2B Edition, Klaviyo, Salesforce Marketing Cloud Account Engagement)
- Mistral Small: neither first, one named (first choices: BigCommerce B2B Edition, HubSpot Marketing Hub) (alternatives: ActiveCampaign, Klaviyo, Shopify, VTEX)
- DeepSeek V4 Flash: neither first, one named (first choices: HubSpot Marketing Hub) (alternatives: ActiveCampaign, Adobe Commerce, BigCommerce B2B Edition, Klaviyo, Shopify)
- Llama 4 Maverick: neither first, one named (first choices: BigCommerce) (alternatives: SCAYLE, Shopify, Shopware, VTEX)
- Qwen 3.7 Flash: neither first, one named (first choices: BigCommerce B2B Edition, HubSpot Marketing Hub) (alternatives: ActiveCampaign, Shopify)
- Kimi K2: neither first, one named (first choices: BigCommerce B2B Edition, HubSpot Marketing Hub) (alternatives: Klaviyo)
- Claude Haiku 4.5: neither named (first choices: BigCommerce B2B Edition, HubSpot Marketing Hub) (alternatives: OroCommerce)
- GPT-5.4 mini: neither named (first choices: HubSpot Marketing Hub) (alternatives: Adobe Commerce, BigCommerce, Salesforce B2B Commerce)
- MiniMax M2.5: neither named (first choices: BigCommerce B2B Edition) (alternatives: Adobe Commerce, SAP Commerce, Shopify Plus with B2B Suite)

## What the models said about Klaviyo

- "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

- "Strong Alternative: Shopify Plus ... Limitations: B2B features less mature (no native RFQ, limited approval workflows)" (Kimi K2, direct prompt, soft negative)

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. 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.