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 › Billing · September 2026 Edition

Billing and subscription management

Asked as “subscription billing platform”, and as “recurring billing and subscription management tool”, on behalf of a mid-market B2B software company. 23 first choices recorded across the direct, paraphrase, budget and scale prompts, six models each.
Standing · first-choice share
57%
Clear leader
57Chargebee17Maxio17Stripe Billing09others

57% of first choices, clear leader.

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
01Chargebee57%12%32endorsed leadernewNew since September 2026: not ranked then, 57% now.
02Stripe Billing17%21%33accepted challengernewNew since September 2026: not ranked then, 17% now.
03Maxio17%14%21accepted challengernewNew since September 2026: not ranked then, 17% now.
04Paddle4%27%22criticized challengernewNew since September 2026: not ranked then, 4% now.
Show the four products at 0%, ordered by negative rate
08Zuora0%60%25criticized challengernewNew since September 2026: not ranked then, 0% now.
07Recurly0%33%21criticized challengernewNew since September 2026: not ranked then, 0% now.
05Metronome0%8%13accepted challengernewNew since September 2026: not ranked then, 0% now.
06Orb0%0%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.
All six head-to-head pages: the top four products, each against each

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
06
07
08
Accepted challengerEndorsed leader
0%First-choice share → · lines at 30% share and 25% negative70%
Key
01Chargebee57%
02Stripe Billing17%
03Maxio17%
04Paddle4%
05Metronome0%
06Orb0%
07Recurly0%
08Zuora0%

What they warned about

Four of six models held their first choice under the paraphrase. GPT-6 Astra and GPT-5.6 Sol 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.
Zuora
60%
15 of 25 labels negative · 5 of 6 models · 2 hard negative
“Verdict: Avoid completely unless you are a large enterprise with multi-product complexity, a massive budget, and a dedicated billing operations team.” Gemini 3.1 Pro, negative prompt
Paddle
27%
6 of 22 labels negative · 5 of 6 models · 1 hard negative
“Skip merchant-of-record options (Paddle, FastSpring) unless you sell self-serve globally” Claude Opus 5, paraphrase prompt
Stripe Billing
21%
7 of 33 labels negative · 5 of 6 models
“Stripe Billing: It is described as developer-centric and API-first, so teams without strong engineering support may find it harder to operate” Perplexity Sonar Pro, negative prompt
Chargebee
12%
4 of 32 labels negative · 4 of 6 models
“Chargebee for paid feature requirements ... I’d require a written feature-and-cost breakdown before committing” GPT-6 Astra, 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

32 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. 567 links across 187 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 · Chargebee16 answers · 19 citations · 5 models
14 answers · 29 citations · 5 models
vendor site · Solidgate14 answers · 14 citations · 4 models
vendor site · Stripe13 answers · 17 citations · 4 models
vendor site · LedgerUp12 answers · 16 citations · 3 models
12 answers · 14 citations · 3 models
vendor site · Maxio11 answers · 14 citations · 5 models
vendor site · Younium10 answers · 14 citations · 3 models
vendor site · Recurly10 answers · 10 citations · 4 models
9 answers · 16 citations · 3 models
vendor site · Zuora9 answers · 13 citations · 4 models
9 answers · 12 citations · 4 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 subscription billing platform”, “subscription billing 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
Chargebee chargebee.com57%1985,40014069,891$1,889827
Stripe Billing stripe.com17%1701,9005993,226,782$3,6211021
Maxio maxio.com17%1122,4004932,891$51859
Paddle paddle.com4%8860,50069,116172,07931
Zoho parent site
Zoho Billing 4%
4%6018,10029
Metronome metronome.com0%111,220,0005,0683,426$143
Orb withorb.com0%949,50036,68128,669$3,50786
Recurly recurly.com0%1323,60010522,718$12,207172
Ordway ordwaylabs.com0%122,20068322,195$14210
Zenskar zenskar.com0%172091,8490

Google's top ten for the two searches hold 16 sites; 6 of them are among the sites the models cited here (chargebee.com, recurly.com, solidgate.com, stripe.com, withorb.com, zoneandco.com). The first result for “best subscription billing platform” is salesforce.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 subscription billing platform for a mid-market B2B software company?”Paraphrase“Which recurring billing and subscription management tool would you recommend to a mid-sized B2B software company?”Comparative“What are the top subscription billing platforms and how do they differ?”Budget-constrained“What is the best subscription billing platform for a company with a limited budget?”Scale-constrained“We are a 500 person company evaluating a subscription billing platform. What should we look at?”Negative“Which subscription billing platforms should I avoid or be cautious about?”
Claude Opus 5Chargebee
Four alternativesMaxio, Metronome, Orb, Stripe Billing
against: Recurly, Zuora
ChargebeeHeld
One alternativeMaxio
against: FastSpring, Metronome, Paddle, Recurly, Stripe Billing, Zuora
no first choiceagainst: ZuoraPaddle, Stripe Billing
One alternativeZoho Billing
against: Chargebee, Lemon Squeezy, Maxio, Recurly, Zuora
no first choiceagainst: Stripe Billingagainst: 2Checkout / Verifone, Lemon Squeezy, Maxio, Paddle, Recurly, Zuora
Claude Opus 4.8Chargebee
Three alternativesMetronome, Orb, Stripe Billing
against: Zuora
ChargebeeHeld
Four alternativesOrb, Recurly, Stripe Billing, Zenskar
against: Zuora
no first choiceChargebee, Stripe Billing
Two alternativesLemon Squeezy, Paddle
no first choiceagainst: Zuora
GPT-6 AstraMaxio
Two alternativesChargebee, Stripe Billing
ChargebeeChanged
Two alternativesMaxio, Stripe Billing
no first choiceStripe Billing
Two alternativesChargebee, Zoho Billing
no first choiceagainst: Chargebee, Lemon Squeezy, Paddle, Recurly, Stripe Billing
GPT-5.6 SolMaxio
Three alternativesChargebee, Metronome, Stripe Billing
against: Zuora
ChargebeeChanged
Three alternativesMaxio, Paddle, Stripe Billing
against: Zuora
Stripe Billing
Five alternativesChargebee, Maxio, Paddle, Recurly, Zuora
Stripe Billing
Four alternativesChargebee, Lemon Squeezy, Paddle, Zoho Billing
against: Recurly
no first choiceagainst: Chargebee, Maxio, Paddle, Recharge, Recurly, Salesforce Revenue Cloud, Stripe Billing, Zuora
Gemini 3.1 ProChargebee, Maxio
Three alternativesPaddle, Stripe Billing, Zuora
Chargebee, MaxioHeld
Two alternativesPaddle, Stripe Billing
Stripe Billing
Five alternativesChargebee, Maxio, Paddle, Recurly, Zuora
Chargebee
Three alternativesPaddle, Stripe Billing, Zoho Billing
Chargebee
Three alternativesMaxio, Paddle, Recurly
against: Stripe Billing, Zuora
against: Chargebee, FastSpring, Paddle, PayPal Subscriptions, Stripe Billing, Zuora
Perplexity Sonar ProChargebee
Three alternativesMaxio, Recurly, Stripe Billing
against: Zuora
ChargebeeHeld
Four alternativesMaxio, Recurly, Stripe Billing, Younium
Chargebee
Five alternativesMaxio, Paddle, Recurly, Stripe Billing, Zuora
Zoho Billing
Two alternativesStripe Billing, Whop
no first choiceagainst: Paddle, Stripe Billing, Zuora
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 19:28yes3854 s
Direct recommendationClaude Opus 4.8claude-opus-4-82026-09-09 19:30yes2980 s
Direct recommendationGPT-6 Astragpt-6-astra2026-09-09 19:32yes424 s
Direct recommendationGPT-5.6 Solgpt-5.6-sol2026-09-09 19:33yes538 s
Direct recommendationGemini 3.1 Progemini-3.1-pro-preview2026-09-10 17:22yes746 s
Direct recommendationPerplexity Sonar Prosonar-pro2026-09-09 19:31yes208 s
ParaphraseClaude Opus 5claude-opus-52026-09-09 19:35yes2164 s
ParaphraseClaude Opus 4.8claude-opus-4-82026-09-09 19:37yes2753 s
ParaphraseGPT-6 Astragpt-6-astra2026-09-09 19:38yes425 s
ParaphraseGPT-5.6 Solgpt-5.6-sol2026-09-09 19:39yes326 s
ParaphraseGemini 3.1 Progemini-3.1-pro-preview2026-09-10 17:24no037 s
ParaphrasePerplexity Sonar Prosonar-pro2026-09-09 19:37yes207 s
ComparativeClaude Opus 5claude-opus-52026-09-09 19:43yes25136 s
ComparativeClaude Opus 4.8claude-opus-4-82026-09-09 19:45yes2962 s
ComparativeGPT-6 Astragpt-6-astra2026-09-09 19:47yes843 s
ComparativeGPT-5.6 Solgpt-5.6-sol2026-09-09 19:49yes642 s
ComparativeGemini 3.1 Progemini-3.1-pro-preview2026-09-10 17:25no021 s
ComparativePerplexity Sonar Prosonar-pro2026-09-09 19:46yes207 s
Budget constrainedClaude Opus 5claude-opus-52026-09-09 19:55yes40143 s
Budget constrainedClaude Opus 4.8claude-opus-4-82026-09-09 19:57yes3353 s
Budget constrainedGPT-6 Astragpt-6-astra2026-09-09 19:58yes423 s
Budget constrainedGPT-5.6 Solgpt-5.6-sol2026-09-09 19:59yes524 s
Budget constrainedGemini 3.1 Progemini-3.1-pro-preview2026-09-10 17:29yes896 s
Budget constrainedPerplexity Sonar Prosonar-pro2026-09-09 19:57yes205 s
Scale constrainedClaude Opus 5claude-opus-52026-09-09 20:03yes38117 s
Scale constrainedClaude Opus 4.8claude-opus-4-82026-09-09 20:04no018 s
Scale constrainedGPT-6 Astragpt-6-astra2026-09-09 20:06yes438 s
Scale constrainedGPT-5.6 Solgpt-5.6-sol2026-09-09 20:08yes665 s
Scale constrainedGemini 3.1 Progemini-3.1-pro-preview2026-09-10 17:30no027 s
Scale constrainedPerplexity Sonar Prosonar-pro2026-09-09 20:04yes2013 s
Negative framingClaude Opus 5claude-opus-52026-09-09 20:11yes4175 s
Negative framingClaude Opus 4.8claude-opus-4-82026-09-09 20:13yes3762 s
Negative framingGPT-6 Astragpt-6-astra2026-09-09 20:15yes540 s
Negative framingGPT-5.6 Solgpt-5.6-sol2026-09-09 20:18yes859 s
Negative framingGemini 3.1 Progemini-3.1-pro-preview2026-09-10 17:31yes1238 s
Negative framingPerplexity Sonar Prosonar-pro2026-09-09 20:14yes205 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
PayPal read as PayPal Subscriptions
Unresolved, counted raw
None awaiting human review.
Discontinued, still offered
No shut-down product was recommended here.
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