Thunderdome B2B SaaS AI Visibility Index

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September 2026 snapshot · 72 AI answers Locked up

Subscription Billing: AI Visibility Ranking

Billing, payments, and revenue management platforms for SaaS. Right now, Stripe is the brand AI assistants recommend most, with a Visibility Score of 88 and the #1 spot in 72% of answers. Head-to-head: Stripe vs Paddle →

These rankings are measured from what the three models know from training, not a live web search. When the models DO search the web, see which sources they cite. Methodology.

Chargebee gets considered everywhere, chosen nowhere.

Stripe is close to a lock, appearing in 93% of answers and taking the first-pick slot 72% of the time, which leaves every other brand competing for the remainder. Chargebee's situation is the sharpest anomaly: it surfaces in 74% of answers but earns zero first picks, meaning the models treat it as a credible option they consistently pass over. That considered-but-not-chosen pattern suggests AI systems view Chargebee as a reasonable backup rather than a primary recommendation, which is a weak position when buyers often act on whatever name comes first.

AI-generated analysis of the September 2026 measurements.

# Brand Visibility Score Trend (3 mo) Mention rate Avg. position #1 pick rate Models
1 Stripe
88
±2.8
Jul 2026: 88.3 · Aug 2026: 86.1 · Sep 2026: 87.6 flat 93% 1.6 72% ChatGPT #1 Claude #1 Gemini #1
2 Paddle
64
±2.8
Jul 2026: 63.1 · Aug 2026: 65.7 · Sep 2026: 63.9 flat 78% 2.8 19% ChatGPT #3 Claude #3 Gemini #2
3 Chargebee
59
±2.2
Jul 2026: 60.4 · Aug 2026: 51.9 · Sep 2026: 59.2 ▲ 7 74% 3.0 0% ChatGPT #2 Claude #2 Gemini #3
4 Zuora
39
±3
Jul 2026: 31.3 · Aug 2026: 30.4 · Sep 2026: 38.9 ▲ 9 51% 3.4 8% ChatGPT #4 Claude #4 Gemini #5
5 Lemon Squeezy
30
±1.8
Jul 2026: 36.9 · Aug 2026: 39.6 · Sep 2026: 30.1 ▼ 10 36% 2.7 0% ChatGPT #7 Claude #7 Gemini #4
6 Recurly
30
±5.7
Jul 2026: 24.6 · Aug 2026: 25.3 · Sep 2026: 29.6 flat 44% 4.3 0% ChatGPT #5 Claude #5 Gemini #7
7 FastSpring
18
±2.9
Jul 2026: 11.1 · Aug 2026: 14 · Sep 2026: 18.3 ▲ 4 26% 4.1 0% ChatGPT #6 Claude #9 Gemini #6
8 Maxio
17
±4.1
Jul 2026: 12.8 · Aug 2026: 13.2 · Sep 2026: 17.4 flat 29% 5.0 0% ChatGPT #11 Claude #6 Gemini #8
9 Orb
9
±4
Jul 2026: 14.4 · Aug 2026: 13.2 · Sep 2026: 9.3 flat 17% 5.4 0% ChatGPT #8 Claude #11 Gemini #11
10 Lago
7
±3.4
Jul 2026: 9.4 · Aug 2026: 6.5 · Sep 2026: 7.2 flat 15% 6.3 0% ChatGPT Claude #8 Gemini #12
11 SAP
7
±3
Jul 2026: 2.8 · Aug 2026: 7.4 · Sep 2026: 6.5 flat 8% 3.2 0% ChatGPT #12 Claude #12 Gemini #9
12 Metronome
6
±3.2
Jul 2026: 9.3 · Aug 2026: 9.9 · Sep 2026: 6.3 flat 13% 6.0 0% ChatGPT #9 Claude #15 Gemini #13
13 Salesforce
5
±3.4
Jul 2026: 3.5 · Aug 2026: 7.5 · Sep 2026: 5.3 flat 8% 4.7 0% ChatGPT Claude #13 Gemini #10
14 Gumroad
5
±1.9
Jul 2026: 8.5 · Aug 2026: 7.2 · Sep 2026: 4.9 flat 7% 4.0 0% ChatGPT Claude #10 Gemini #14
15 2Checkout
4
±2.4
Jul 2026: 0.8 · Aug 2026: 2.5 · Sep 2026: 3.6 flat 8% 6.8 0% ChatGPT #10 Claude #14 Gemini

The ± under each score is the reliability band: how much the number would move if we re-ran the identical measurement. It is tight because each prompt is sampled multiple times. It is not the same as how much the ranking depends on which prompts we ask — a separate, wider figure shown on hover.

Just below the cutoff: Oracle (3.3), Avalara (3.2), Digital River (3.1), TaxJar (2.9), Braintree (2.4). 52 brands were scored in this category; the leaderboard shows the top 15.

Visibility Score: position-weighted presence across all measured answers, 0 to 100. A score of 100 means the brand was the first recommendation in every answer. Every point in a trend line is a live monthly measurement; there is no modeled or backfilled history. Full methodology.

Openness 12/100: the share of this category's recommendation weight not held by the leader.

Compare brands in Subscription Billing head-to-head →  ·  Explore the prompt tree →

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Do the models agree?

Per-model Visibility Scores for the top 10. A long gray bar means the three assistants disagree about the brand. Hover a row for exact values.

ChatGPT Claude Gemini
0 25 50 75 100 Visibility Score · 0 = never mentioned, 100 = always the first recommendation Stripe Paddle Chargebee Zuora Lemon Squeezy Recurly FastSpring Maxio Orb Lago

Where they land in the answer

When a brand is mentioned, where does it appear? Box shows the middle 50% of positions, the thick line is the median, whiskers are the extremes. Hover a row for the detail.

1 2 3 4 5 6 7 8 9 10 Position in the answer · 1 = the first product recommended Stripe Paddle Chargebee Zuora Lemon Squeezy Recurly FastSpring Maxio Orb Lago

What each model recommends first

ChatGPT

gpt-5.4

1 Stripe
88
2 Chargebee
65
3 Paddle
62
4 Zuora
55
5 Recurly
35

Claude

claude-sonnet-4-6

1 Stripe
86
2 Chargebee
59
3 Paddle
52
4 Zuora
38
5 Recurly
35

Gemini

gemini-3-flash-preview

1 Stripe
89
2 Paddle
78
3 Chargebee
54
4 Lemon Squeezy
38
5 Zuora
24

The questions we asked

Each model answered every prompt 3 times in September 2026. Prompts are brand-neutral so no vendor gets seeded into the question.

  1. Best overall
    What's the best subscription billing platform for a SaaS company? See who wins it →
  2. Use-case fit
    We need recurring billing, invoicing, and dunning for our B2B SaaS. What should we use? See who wins it →
  3. Top tools in 2026
    What are the top subscription management and billing tools in 2026? See who wins it →
  4. Startup & small team
    Which billing platform is best for an early-stage SaaS startup? See who wins it →
  5. Enterprise pick
    Which billing platform should a large enterprise standardize on, considering security, compliance, and scale? See who wins it →
  6. Feature-led ask
    I want to handle global payments, tax, and subscriptions without building it ourselves. What do you recommend? See who wins it →
  7. If you could pick one
    If you could only pick one billing platform for SaaS, which one and why? See who wins it →
  8. Budget & alternatives
    What's the best merchant-of-record option for selling software globally? See who wins it →