Thunderdome B2B SaaS AI Visibility Index

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Brand report · September 2026

Brex Brex: AI Visibility Report

brex.com ↗

When buyers ask ChatGPT, Claude, and Gemini about saas procurement & spend, Brex ranks #12 of 15, a Visibility Score of 7 in SaaS Procurement & Spend .

These rankings are measured from what the three models know from training, not a live web search. The live-web grounded surface is rolling out across the index. Methodology.

How AI sees Brex

One category, bottom third, zero first picks.

Where it wins. Brex earns a mention in SaaS Procurement & Spend conversations 22% of the time, which keeps it in the same breath as Ramp and Vendr. That foothold is real.

Where it loses. Sitting 12th of 15 in its only measured category, Brex cannot close the sale with AI models: it draws no first-pick selections, and procurement prompts framed around startups, enterprise choice, or a single top recommendation skip it entirely.

AI-generated analysis of the September 2026 measurements.

Positioning

How Brex positions itself vs how AI ranks it

The pitch

"Finance built for speed and control."

What AI actually says

Homepage self-messaging · September 2026 ranking · the biggest gaps across the index →

SaaS Procurement & Spend · #12 of 15

7 / 100 flat vs last month
22%
mention rate (72 answers)
8
avg. position
0%
first pick
3%
share of voice
12.2Jul 2026Jul 2026: 12.29.3Aug 2026Aug 2026: 9.36.7Sep 2026Sep 2026: 6.7
ChatGPT
2
Claude
1
Gemini
17

How the models portray Brex

Being named is not the same as being recommended. Each mention is graded endorsed (a strong pick), listed (a neutral option), or caveated (named with a reservation).

19% 69% 13%
endorsed · 95% band 7–43% listed caveated graded across 16 mentions in SaaS Procurement & Spend answers
Prompt themes Brex would want to own

Share of each theme's answers that mention Brex. Hover a row for the exact prompt. Compare shapes on the head-to-head page.

Gaps Startup & small team · Enterprise pick · If you could pick one

Most co-mentioned competitors

Share of Brex's mentions where the AI models name this brand in the same answer. That is the real competitive set in the AI channel.

Ramp
100%
Vendr
94%
Zylo
94%
Tropic
81%
Airbase
63%
Torii
63%

Scores are measured from real AI answers, refreshed monthly. Methodology.

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