# Ecommerce marketing for small business buyers: what AI models recommend, September 2026

GTM AI Recommendation Index, September 2026 Edition. Asked as "ecommerce marketing platform" and as "marketing tool for an online store", six framings each, to twelve models with search on, on behalf of a small B2B company. Page: https://gtm-ai-index.com/marketing/ecommerce-marketing/smb/

**Standing:** Klaviyo (tied with HubSpot Marketing Hub) leads with 17% of first choices; verdict contested. 52 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| # | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | Klaviyo | 17% | 20% | 41 |
| 2 | HubSpot Marketing Hub | 17% | 22% | 27 |
| 3 | ActiveCampaign | 15% | 4% | 27 |
| 4 | Omnisend | 13% | 6% | 34 |
| 5 | Shopify | 12% | 18% | 34 |
| 6 | BigCommerce | 6% | 13% | 23 |
| 7 | WooCommerce | 6% | 14% | 22 |
| 8 | Square Online | 4% | 0% | 10 |
| 9 | Brevo | 2% | 4% | 24 |
| 10 | Wix | 2% | 18% | 11 |
| 11 | Mailchimp | 2% | 35% | 34 |
| 12 | Google Analytics 4 | 0% | 0% | 11 |

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: no first choice; alternatives BigCommerce, HubSpot Marketing Hub, WooCommerce
- GPT-5.4 mini: BigCommerce, Shopify; alternatives HubSpot Marketing Hub
- Gemini 3.5 Flash: ActiveCampaign, HubSpot Marketing Hub; alternatives BigCommerce, Klaviyo, Omnisend, Shopify
- Perplexity Sonar: Shopify; alternatives BigCommerce B2B Edition
- Grok 4.1 Fast: ActiveCampaign; alternatives Drip, Klaviyo, Omnisend
- Mistral Small: Shopify; alternatives ActiveCampaign, BigCommerce B2B Edition, HubSpot Marketing Hub, WooCommerce
- DeepSeek V4 Flash: BigCommerce, Shopify; alternatives HubSpot Marketing Hub, Klaviyo, Mailchimp
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: ActiveCampaign; alternatives BigCommerce, HubSpot Marketing Hub
- Kimi K2: ActiveCampaign; alternatives BigCommerce, Brevo, Standard Shopify
- GLM 4.7 FlashX: Klaviyo; alternatives ActiveCampaign, BigCommerce, Shopify
- MiniMax M2.5: WooCommerce; alternatives BigCommerce B2B Edition, Shopify

## Sources the answers cite

18 of 72 answers came back with a source list, from 4 of 12 models. Sites named in the most answers:

- shopify.com: 7 answers, 9 citations
- bigcommerce.com: 6 answers, 7 citations
- stripe.com: 4 answers, 4 citations
- amzprep.com: 3 answers, 3 citations
- expertmarket.com: 3 answers, 3 citations
- forbes.com: 3 answers, 3 citations
- guideflow.com: 3 answers, 3 citations
- learn.g2.com: 3 answers, 3 citations

Pages named in the most answers:

- https://shopify.com/blog/best-ecommerce-platform-small-business (4 answers)
- https://stripe.com/resources/more/ecommerce-platforms-for-small-businesses-a-guide-to-get-started (4 answers)
- https://amzprep.com/top-25-ecommerce-platforms-north-america (3 answers)
- https://bigcommerce.com/articles/ecommerce/small-business-ecommerce (3 answers)
- https://expertmarket.com/website-builders/best-small-business-ecommerce-platform (3 answers)
- https://learn.g2.com/best-ecommerce-platforms (3 answers)
- https://mrpeasy.com/blog/best-ecommerce-platforms (3 answers)
- https://taboola.com/marketing-hub/best-ecommerce-marketing-platforms (3 answers)
- https://bigcommerce.com/articles/ecommerce/ecommerce-platforms (2 answers)
- https://commercepundit.com/blog/affordable-e-commerce-platforms-for-small-businesses (2 answers)

## Warned against

- Klaviyo: 8 of 41 labels negative. "The platform most small businesses should be most wary of is Klaviyo — its 2025 active-profile billing change makes costs unpredictable and punishing" (DeepSeek V4 Flash, negative prompt)
- Mailchimp: 12 of 34 labels negative. "This is the primary example of a legacy giant changing its behavior in ways that hurt small budgets.... increasingly expensive for growing brands" (Qwen 3.7 Flash, negative prompt)
- HubSpot Marketing Hub: 6 of 27 labels negative. "the free plan has no marketing automation. To get automation, you need Marketing Hub Professional at ~$890/month plus a $3,000 onboarding fee" (Kimi K2, direct prompt)
- Shopify: 6 of 34 labels negative. "best if you can spend a bit more for the fastest setup ... but it is usually not the cheapest option" (Perplexity Sonar, budget prompt)

## Record

- Method: https://gtm-ai-index.com/methodology/
- Raw judge labels and full responses: https://gtm-ai-index.com/data/
- License: CC BY 4.0. Cite as GTM AI Recommendation Index, September 2026 Edition, gtm-ai-index.com.