AI Indexes
GTM AI Index
September 2026 Edition, expanded tier · The six flagship models on every category, as published September 9, 2026. The public index runs on the standard tier; this record is what the Expanded Edition Pack delivers on one category. The category page →
Index › Marketing › September 2026 Edition

Ecommerce marketing

Asked as “ecommerce marketing platform”, and as “marketing tool for an online store”, on behalf of a mid-market B2B software company. 50 first choices recorded across the direct, paraphrase, budget and scale prompts, six models each.
Standing · first-choice share
38%
Contested · BigCommerce B2B Edition 14%
38HubSpot Marketing Hub14BigCommerce B2B Edition12Omnisend36others

38% of first choices, contested.

Since September 2026▼−2Since September 2026: 36% → 34%, −2 points. Inside the 12-point floor: within noise. Read over the models both editions asked.HubSpot Marketing Hub held the lead, −2 points on 36%, inside the 12-point floor.
ShowinginAll 112 categories in the September 2026 Edition →

The standing

Share is the count of first choices across the direct, paraphrase, budget and scale prompts, over all six models, for a mid-market B2B software company. Ordered by share.
ProductFirst-choice shareNegative rateLabelsQuadrantSince September 2026
01HubSpot Marketing Hub38%5%39endorsed leader▼−2Since September 2026: 36% → 34%, −2 points. Inside the 12-point floor: within noise. Read over the models both editions asked.36% → 34%
02Omnisend12%3%29accepted challenger▲+1Since September 2026: 10% → 11%, +1 point. Inside the 12-point floor: within noise. Read over the models both editions asked.10% → 11%
03Klaviyo6%19%52accepted challenger▼−11Since September 2026: 18% → 7%, −11 points. Past the 12-point floor: movement. Read over the models both editions asked.18% → 7%
04Shopify4%4%28accepted challenger▲+3Since September 2026: 2% → 5%, +3 points. Inside the 12-point floor: within noise. Read over the models both editions asked.2% → 5%
05ActiveCampaign4%6%32accepted challenger▲+3Since September 2026: 2% → 5%, +3 points. Inside the 12-point floor: within noise. Read over the models both editions asked.2% → 5%
06Brevo4%0%18accepted challenger▲+5Since September 2026: 0% → 5%, +5 points. Inside the 12-point floor: within noise. Read over the models both editions asked.0% → 5%
07Shopify Email4%0%14accepted challenger▲+2Since September 2026: 0% → 2%, +2 points. Inside the 12-point floor: within noise. Read over the models both editions asked.0% → 2%
08BigCommerce4%7%15accepted challenger▼−1Since September 2026: 6% → 5%, −1 point. Inside the 12-point floor: within noise. Read over the models both editions asked.6% → 5%
Show the five products at 0%, ordered by negative rate
13Adobe Marketo Engage0%55%11criticized challenger=heldSince September 2026: 0% → 0%, ±0 points. Inside the 12-point floor: within noise. Read over the models both editions asked.0% → 0%
10Mailchimp0%37%30criticized challenger=heldSince September 2026: 0% → 0%, ±0 points. Inside the 12-point floor: within noise. Read over the models both editions asked.0% → 0%
12Adobe Commerce0%31%13criticized challenger=heldSince September 2026: 0% → 0%, ±0 points. Inside the 12-point floor: within noise. Read over the models both editions asked.0% → 0%
11Salesforce Marketing Cloud0%27%11criticized challenger=heldSince September 2026: 0% → 0%, ±0 points. Inside the 12-point floor: within noise. Read over the models both editions asked.0% → 0%
09WooCommerce0%10%10accepted challenger▼−8Since September 2026: 8% → 0%, −8 points. Inside the 12-point floor: within noise. Read over the models both editions asked.8% → 0%

The floor is 12 points of share, measured: how far the models move a leader on their own when the same questions are asked twice with nothing changed. A larger change is movement; a smaller one is noise, and both are shown. How the floor is measured

Bars are the share of first choices, 0 to 100Every product with at least 10 labels here. Every product name links to its product page.

Recommended versus criticized

Every product with at least 10 labels here, on both axes. The 30% line names a quadrant, not the verdict above: that one needs more than 40%.

Criticized challengerCriticized default
Negative label rate →
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Accepted challengerEndorsed leader
0%First-choice share → · lines at 30% share and 25% negative50%
Key
01HubSpot Marketing Hub38%
02Omnisend12%
03Klaviyo6%
04Shopify4%
05ActiveCampaign4%
06Brevo4%
07Shopify Email4%
08BigCommerce4%
09WooCommerce0%
10Mailchimp0%
11Salesforce Marketing Cloud0%
12Adobe Commerce0%
13Adobe Marketo Engage0%

What they warned about

A high negative share on a product with few labels is a warning. A low share on a product with many labels is salience, not sentiment.
Mailchimp
37%
11 of 30 labels negative · 10 of 6 models · 5 hard negative
“Mailchimp: While famous, long-time users often complain that it becomes incredibly expensive once you scale past a certain contact limit. Their support is also often criticized” Qwen 3.7 Flash, negative prompt
Klaviyo
19%
10 of 52 labels negative · 6 of 6 models · 2 hard negative
“it is generally **not recommended** as a primary marketing platform for complex B2B companies” Gemini 3.5 Flash, direct prompt
Adobe Commerce
31%
4 of 13 labels negative · 4 of 6 models · 1 hard negative
“you should avoid Magento (Adobe Commerce)” Gemini 3.5 Flash, negative prompt
Adobe Marketo Engage
55%
6 of 11 labels negative · 4 of 6 models · 1 hard negative
“**Marketo** — Unless you have a dedicated marketing operations team, the complexity and cost aren't justified at mid-market scale.” DeepSeek V4 Flash, paraphrase prompt

What they cite

Citations exist only for the models that return a source list: fourteen of the six in this edition.

Sites the answers cite

75 of 84 answers in this category came back with a source list, from 14 of 6 models: citations where the model returns them, or the search results it consulted. 1077 links across 344 sites, every framing counted. Ranked by the number of answers carrying the site or page. None of the 36 answers across every segment cited this index's own page for the category.

vendor site · Shopify29 answers · 40 citations · 14 models
vendor site · Taboola24 answers · 24 citations · 10 models
20 answers · 28 citations · 10 models
vendor site · Klaviyo19 answers · 25 citations · 9 models
vendor site · HubSpot17 answers · 23 citations · 10 models
vendor site · BigCommerce16 answers · 23 citations · 11 models
vendor site · Sender14 answers · 16 citations · 9 models
vendor site · Drip14 answers · 15 citations · 8 models
vendor site · Omnisend13 answers · 23 citations · 8 models
13 answers · 16 citations · 10 models
vendor site · ActiveCampaign12 answers · 16 citations · 8 models
vendor site · Guideflow12 answers · 16 citations · 10 models

Pages the answers cite

The ten pages named in the most answers, by full address. A page here is one the models returned with a recommendation, not one the index endorses.

Search against answers

Each company's standing in the answers beside its site's footprint in Google search, one row a site: the products the models named on it with their shares, and the share they add up to; monthly searches on Google, and DataForSEO's estimate of AI search demand (modeled from search signals, directional, not a count of queries to any assistant), for the most-searched of the company's and its products' names (the name is in each row's hover text); estimated monthly organic visits to the site; and its best position in Google's top ten for “best ecommerce marketing platform”, “ecommerce marketing platform”. US estimates from DataForSEO and Google's Ads Transparency Center. A small company's site, or a mid-sized company's site for its flagship, is marked company; a product on a large parent's site (Google, Microsoft) has no site figures. A column with no figures for this category is left out, and an empty cell means none were seen, not none exist. Two measurements side by side: neither is read as the cause of the other.
Company and productsShareOwn site citedName searches, GoogleAI search demand, est.Organic visitsPaid search a month, est.Google ads, last 30 daysBest Google position
HubSpot parent site
HubSpot Marketing Hub 38%
38%934368,0009,776
BigCommerce bigcommerce.com
BigCommerce B2B Edition 14%, BigCommerce 4%
18%1809,900989655,124$1,225115
Omnisend omnisend.com12%1859,90010851,545$11366
Shopify shopify.com
Shopify 4%, Shopify Email 4%
8%3141,000,00038,0673,486,997$3,351110
Klaviyo klaviyo.com6%35390,5001,560200,057$572208
ActiveCampaign activecampaign.com4%44518,100307235,709$1,42432
Brevo brevo.com4%38640,50032781,741$17,847106
MailerLite mailerlite.com2%15749,50031159,716$85115
Shopware shopware.com2%10
Wix wix.com2%179673,00021,8814,049,160$1,858119

Google's top ten for the two searches hold 14 sites; 1 of them are among the sites the models cited here (klaviyo.com). The first result for “best ecommerce marketing platform” is ecomm.design.

How they answered

Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.
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ModelDirect“What is the best ecommerce marketing platform for a mid-market B2B company?”Paraphrase“Which marketing tool for an online store would you recommend to a mid-sized B2B company?”Comparative“What are the top ecommerce marketing platforms and how do they differ?”Budget-constrained“What is the best ecommerce marketing platform for a company with a limited budget?”Scale-constrained“We are a 500 person company evaluating an ecommerce marketing platform. What should we look at?”Negative“Which ecommerce marketing platforms should I avoid or be cautious about?”
Claude Opus 5no first choiceno first choiceno first choiceno first choiceno first choicenothing named
Claude Opus 4.8no first choiceno first choiceno first choiceno first choiceno first choicenothing named
GPT-6 Astrano first choiceno first choiceno first choiceno first choiceno first choicenothing named
GPT-5.6 Solno first choiceno first choiceno first choiceno first choiceno first choicenothing named
Gemini 3.1 Prono first choiceno first choiceno first choiceno first choiceno first choicenothing named
Perplexity Sonar Prono first choiceno first choiceno first choiceno first choiceno first choicenothing named
Bold is the first choiceAlternatives are counted; the count opens them.What the answer argued against

The record

One row per call: the version string exactly as returned, whether the model searched, sources cited, and latency. Full answer text is in the free responses file. Download the record
Zero rows: every prompt, every model, every answer.
PromptModelVersion stringTime (UTC)SearchedSourcesLatency

Normalization in this category

Every judgment call made between the raw labels and the numbers above, listed so it is visible and reversible.

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Category-scoped readings
Adobe read as Adobe Journey Optimizer
Amazon read as Amazon Ads
HubSpot read as HubSpot Marketing Hub
Meta read as Meta Ads
Shopify Marketing / Shopify Messaging read as Shopify Email
Shopify Messaging read as Shopify Email
Squarespace read as Squarespace Commerce
Unresolved, counted raw
Adsellr
Ascend Ecom/Ascend CapVentures
Ecom Genie / Lunar Capital Ventures / Profitable Automation / Valiant Consultants Inc.
Rank Math SEO
SAP
Salesforce
Shopify Plus with B2B Features
Sprykur
SuperAGI Marketing (formerly Contlo)
Discontinued, still offered
No shut-down product was recommended here.
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