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

Ecommerce platforms

Asked as “ecommerce platform”, and as “online store platform”, on behalf of a mid-market B2B software company. 21 first choices recorded across the direct, paraphrase, budget and scale prompts, six models each.
Standing · first-choice share
24%
Contested · Stripe Billing 24%
24Square Online24Stripe Billing19Paddle33others

24% of first choices, contested.

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
01BigCommerce B2B Edition10%17%24accepted challengernewNew since September 2026: not ranked then, 10% now.
02Shopify5%30%30criticized challengernewNew since September 2026: not ranked then, 5% now.
03WooCommerce5%27%15criticized challengernewNew since September 2026: not ranked then, 5% now.
Show the two products at 0%, ordered by negative rate
05Adobe Commerce0%50%18criticized challengernewNew since September 2026: not ranked then, 0% now.
04Squarespace Commerce0%20%10accepted challengernewNew since September 2026: not ranked then, 0% now.

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 can't be told apart from repeat variation, and both are shown. Each index measures its own floor from its own repeat, over its own categories, so the floor differs from one index to the next. 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 →
01
02
03
04
05
Accepted challengerEndorsed leader
0%First-choice share → · lines at 30% share and 25% negative20%
Key
01BigCommerce B2B Edition10%
02Shopify5%
03WooCommerce5%
04Squarespace Commerce0%
05Adobe Commerce0%

What they warned about

Three of six models held their first choice under the paraphrase. Claude Opus 4.8, GPT-6 Astra and Gemini 3.1 Pro changed. 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.
Shopify
30%
9 of 30 labels negative · 5 of 6 models · 1 hard negative
“If you drop a software business onto Shopify Plus, you'll spend the next year bolting on subscription management... Buyers in this category consistently regret this path.” Claude Opus 5, direct prompt
Adobe Commerce
50%
9 of 18 labels negative · 4 of 6 models · 1 hard negative
“built around a *catalog of SKUs shipped to a buyer*” Claude Opus 5, direct prompt
Amazon
100%
4 of 4 labels negative · 4 of 6 models
“Marketplaces used as your only store such as Amazon, eBay, or Allegro, because they ... reduce customer ownership and margin control” Perplexity Sonar Pro, negative prompt
WooCommerce
27%
4 of 15 labels negative · 4 of 6 models
“Your store is only as secure and reliable as its hosting, WordPress installation, plugins, and maintenance practices.” GPT-5.6 Sol, negative prompt

What they cite

Six of the six models returned a source list in this edition: six return the pages they cited.

Sites the answers cite

26 of 36 answers in this category came back with a source list, from 6 of 6 models: citations where the model returns them, or the search results it consulted. 322 links across 211 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 · BigCommerce8 answers · 8 citations · 4 models
vendor site · Shopify8 answers · 8 citations · 4 models
5 answers · 6 citations · 2 models
vendor site · Shopify5 answers · 5 citations · 2 models
vendor site · WooCommerce5 answers · 5 citations · 2 models
4 answers · 4 citations · 3 models
4 answers · 4 citations · 2 models
4 answers · 4 citations · 2 models
vendor site · Stripe4 answers · 4 citations · 3 models
vendor site · FastSpring3 answers · 6 citations · 2 models
vendor site · Reddit3 answers · 6 citations · 1 model
3 answers · 4 citations · 3 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 platform”, “ecommerce 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 days
Square Online squareup.com24%599,9004653,658,565$999
Stripe Billing stripe.com24%1701,9005993,226,782$3,621102
Paddle paddle.com19%8860,50069,116172,07931
BigCommerce B2B Edition bigcommerce.com10%1642102655,124$1,225115
Chargebee chargebee.com10%1985,40014069,891$1,88982
Shopify shopify.com5%2991,000,00038,0673,486,997$3,351110
WooCommerce woocommerce.com5%14622,2003,72688,616$2415
FastSpring fastspring.com5%223,6002358,511$29,86815
Salesforce parent site
Salesforce Commerce Cloud 0%, Salesforce Revenue Cloud 0%
0%233550,00060,632
Wix wix.com0%185673,00021,8814,049,160$1,858119

Google's top ten for the two searches hold 15 sites; 1 of them are among the sites the models cited here (reddit.com). The first result for “best ecommerce platform” is theretailexec.com.

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 platform for a mid-market B2B software company?”Paraphrase“Which online store platform would you recommend to a mid-sized B2B software company?”Comparative“What are the top ecommerce platforms and how do they differ?”Budget-constrained“What is the best ecommerce platform for a company with a limited budget?”Scale-constrained“We are a 500 person company evaluating an ecommerce platform. What should we look at?”Negative“Which ecommerce platforms should I avoid or be cautious about?”
Claude Opus 5Stripe Billing
Four alternativesAWS Marketplace, Chargebee, Metronome, Orb
against: Adobe Commerce, BigCommerce B2B Edition, FastSpring, OroCommerce, Paddle, Shopify
Stripe BillingHeld
Four alternativesAWS Marketplace, Chargebee, Maxio, Paddle
against: Adobe Commerce, BigCommerce B2B Edition, Shopify
Shopify
Three alternativesBigCommerce B2B Edition, Wix, WooCommerce
against: Adobe Commerce
Square Online
Two alternativesShopify, WooCommerce
no first choiceagainst: Adobe Commerceagainst: Amazon, BigCommerce B2B Edition, Shopify, Walmart Marketplace
Claude Opus 4.8Chargebee, Stripe Billing
Eight alternativesBigCommerce B2B Edition, DealHub, Lemon Squeezy, Paddle, Recurly, Salesforce Revenue Cloud, Subskribe, Zuora
against: Adobe Commerce, Shopify
PaddleChanged
Five alternativesBigCommerce B2B Edition, Chargebee, Lemon Squeezy, Shopify, Stripe Billing
against: Adobe Commerce
Shopify
Six alternativesAdobe Commerce, BigCommerce B2B Edition, Salesforce Commerce Cloud, Squarespace Commerce, Wix, WooCommerce
Shopify
Three alternativesSquare Online, Wix eCommerce, WooCommerce
no first choiceagainst: SHEIN, Temu
GPT-6 AstraFastSpring
Three alternativesMaxio, Paddle, Stripe Billing
PaddleChanged
Two alternativesShopify, Stripe Billing
Shopify
Six alternativesAdobe Commerce, BigCommerce B2B Edition, Square Online, Squarespace Commerce, Wix, WooCommerce
Square Online
One alternativeShopify
against: WooCommerce
no first choiceagainst: commercetoolsagainst: AliExpress, Amazon, SHEIN, Temu
GPT-5.6 SolStripe Billing
Two alternativesBigCommerce B2B Edition, Salesforce Revenue Cloud
against: Adobe Commerce, Shopify, commercetools
Stripe BillingHeld
Four alternativesAdobe Commerce, BigCommerce B2B Edition, Paddle, Shopify
Shopify
Six alternativesAdobe Commerce, BigCommerce B2B Edition, Square Online, Squarespace Commerce, Wix, WooCommerce
Square Online
Three alternativesBig Cartel, Shopify, WooCommerce
no first choiceagainst: Adobe Commerce, Amazon, Etsy, Shopify, TikTok Shop, Wix Stores, WooCommerce
Gemini 3.1 ProPaddle
Seven alternativesBigCommerce B2B Edition, Chargebee, Cleverbridge, FastSpring, Maxio, Salesforce Commerce Cloud, Stripe Revenue Cloud
against: Shopify
Chargebee, PaddleChanged
Four alternativesBigCommerce B2B Edition, Cleverbridge, FastSpring, Stripe
against: Salesforce B2B Commerce
Shopify
Three alternativesAdobe Commerce, BigCommerce B2B Edition, WooCommerce
Square Online
Four alternativesBig Cartel, Ecwid, Shopify, WooCommerce
no first choice
Six alternativesAdobe Commerce, BigCommerce B2B Edition, Elastic Path Composable Commerce, Salesforce Commerce Cloud, Shopify, commercetools
against: BigCommerce B2B Edition, Magento Open Source, Shopify, Squarespace Commerce, Turbify, Volusion, Weebly, Wix, WooCommerce, Zen Cart, osCommerce
Perplexity Sonar ProBigCommerce B2B Edition
Two alternativesOroCommerce, Shopify
BigCommerce B2B EditionHeld
Two alternativesOroCommerce, Salesforce Commerce Cloud
Shopify
Six alternativesBigCommerce B2B Edition, Ecwid, Square Online, Squarespace Commerce, Wix, WooCommerce
against: Adobe Commerce
Square Online, WooCommerce
One alternativeWix
against: Shopify
no first choiceagainst: Allegro, Amazon, Magento 1.x, Squarespace Commerce, Volusion V1, WooCommerce, Zen Cart, eBay
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.
Thirty-six rows: every prompt, every model, every answer.
PromptModelVersion stringTime (UTC)SearchedSourcesLatency
Direct recommendationClaude Opus 5claude-opus-52026-09-09 20:29yes2269 s
Direct recommendationClaude Opus 4.8claude-opus-4-82026-09-09 20:30no023 s
Direct recommendationGPT-6 Astragpt-6-astra2026-09-09 20:31yes627 s
Direct recommendationGPT-5.6 Solgpt-5.6-sol2026-09-09 20:33yes432 s
Direct recommendationGemini 3.1 Progemini-3.1-pro-preview2026-09-10 17:22no033 s
Direct recommendationPerplexity Sonar Prosonar-pro2026-09-10 19:13yes206 s
ParaphraseClaude Opus 5claude-opus-52026-09-09 20:35yes2059 s
ParaphraseClaude Opus 4.8claude-opus-4-82026-09-09 20:36no020 s
ParaphraseGPT-6 Astragpt-6-astra2026-09-09 20:37yes526 s
ParaphraseGPT-5.6 Solgpt-5.6-sol2026-09-09 20:39yes531 s
ParaphraseGemini 3.1 Progemini-3.1-pro-preview2026-09-10 17:24no045 s
ParaphrasePerplexity Sonar Prosonar-pro2026-09-09 20:36yes206 s
ComparativeClaude Opus 5claude-opus-52026-09-09 20:40yes2336 s
ComparativeClaude Opus 4.8claude-opus-4-82026-09-09 20:41no020 s
ComparativeGPT-6 Astragpt-6-astra2026-09-09 20:43yes741 s
ComparativeGPT-5.6 Solgpt-5.6-sol2026-09-09 20:45yes745 s
ComparativeGemini 3.1 Progemini-3.1-pro-preview2026-09-10 17:28yes8135 s
ComparativePerplexity Sonar Prosonar-pro2026-09-09 20:42yes207 s
Budget constrainedClaude Opus 5claude-opus-52026-09-09 20:47yes3343 s
Budget constrainedClaude Opus 4.8claude-opus-4-82026-09-09 20:48no014 s
Budget constrainedGPT-6 Astragpt-6-astra2026-09-09 20:49yes321 s
Budget constrainedGPT-5.6 Solgpt-5.6-sol2026-09-09 20:50yes418 s
Budget constrainedGemini 3.1 Progemini-3.1-pro-preview2026-09-10 17:29yes430 s
Budget constrainedPerplexity Sonar Prosonar-pro2026-09-09 20:48yes205 s
Scale constrainedClaude Opus 5claude-opus-52026-09-09 20:51no041 s
Scale constrainedClaude Opus 4.8claude-opus-4-82026-09-09 20:52no020 s
Scale constrainedGPT-6 Astragpt-6-astra2026-09-09 20:54yes537 s
Scale constrainedGPT-5.6 Solgpt-5.6-sol2026-09-09 20:55yes362 s
Scale constrainedGemini 3.1 Progemini-3.1-pro-preview2026-09-10 17:31no026 s
Scale constrainedPerplexity Sonar Prosonar-pro2026-09-09 20:53yes206 s
Negative framingClaude Opus 5claude-opus-52026-09-09 20:57no016 s
Negative framingClaude Opus 4.8claude-opus-4-82026-09-09 21:00yes25128 s
Negative framingGPT-6 Astragpt-6-astra2026-09-09 21:02yes627 s
Negative framingGPT-5.6 Solgpt-5.6-sol2026-09-09 21:04yes645 s
Negative framingGemini 3.1 Progemini-3.1-pro-preview2026-09-10 18:39yes659 s
Negative framingPerplexity Sonar Prosonar-pro2026-09-09 21:01yes207 s

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
BigCommerce read as BigCommerce B2B Edition
BigCommerce (B2B Edition) read as BigCommerce B2B Edition
BigCommerce Enterprise read as BigCommerce B2B Edition
BigCommerce, including B2B Edition read as BigCommerce B2B Edition
Elastic Path read as Elastic Path Composable Commerce
Oracle read as Oracle CPQ
SAP read as SAP Commerce Cloud
Squarespace read as Squarespace Commerce
Unresolved, counted raw
None awaiting human review.
Discontinued, still offered
No shut-down product was recommended here.
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