Thunderdome B2B SaaS AI Visibility Index

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The B2B SaaS AI visibility index

When buyers ask ChatGPT , Claude , or Gemini what software to buy, these are the brands the models actually recommend. Measured every month from real AI answers, published free and ungated.

Browse the rankings Where the models disagree →

A real buyer question from the September 2026 snapshot.

“What's the best CRM for a B2B SaaS startup?”

ChatGPT answered 3× this snapshot

HubSpot CRM Best for scaling sales teams: Salesforce Best value/simple sales CRM: Pipedrive Best for startups already in product/data workflows: Attio Best if you want flexibility/power with lower cost: Close or Zoho CRM My practical…

Named across its answers: 1. HubSpot 2. Salesforce 3. Pipedrive · see all 9 answers →

103 software categories 824 buyer-intent prompts 7,416 real AI answers analyzed 3 models tracked: ChatGPT, Claude, Gemini
Brand spotlight · September 2026

Mailchimp is winning the closest race in the index

In Email Marketing, Mailchimp leads Klaviyo by just under a point: the tightest fight in the index this month. Mailchimp is mentioned in 60% of 72 answers and picked first 21% of the time. One good month could flip this category.

See the full Email Marketing ranking →
Mailchimp #1 of 15
50 / 100
45.6Jul 2026Jul 2026: 45.645.1Aug 2026Aug 2026: 45.150.1Sep 2026Sep 2026: 50.1
ChatGPT
45
Claude
79
Gemini
26

Rankings by category

Every category is scored from 72 fresh AI answers to 8 buyer questions. Click through for the full leaderboard, per-model breakdowns, and the exact prompts we asked.

Go-to-marketProduct & analyticsBuild & communicatePeople & learningFinance & operationsCommerce & logisticsMore categories Industries (64) →
Go-to-market
Product & analytics
Build & communicate
People & learning
Finance & operations
Commerce & logistics
More categories

What the September 2026 data says

Most dominant brand

Matterport posts the single highest score in the index (97) in 3D Virtual Tours & Spatial Capture, appearing in 99% of answers.

Tightest race

Email Marketing is the closest fight: Mailchimp (50) leads Klaviyo (50) by under a point.

Why it matters

AI assistants have become the first stop in software research. If the models never say your name, you are invisible at the exact moment buyers form their shortlist.