Airbase vs Brex

Which one do AI engines recommend, and how do they differ on price, fit and features?

The short answer

Brex is the stronger AI pick in Expense Management: it has a visibility score of 34.4 versus 2.4 for Airbase, and ranks ahead in 100% of the answers that name both.

Choose Airbase if…

You need SOC 1 or ISO 27001:2022 coverage
strong spend management options for B2B SaaS
comprehensive AP, procurement, and expense workflows

Choose Brex if…

You want the brand AI engines rank higher (34.4 vs 2.4)
AI answers describe it more positively (58% vs 50% positive)
You need SOC 1 Type II or PCI DSS or ISO/IEC 27001:2022 coverage
You prefer a larger, established vendor (1,001–5,000 employees)

AI visibility side by side

Latest weekly run · Nov 2

Metric	Airbase	Brex
Visibility score	2.4%	34.4%
Change vs last week	New	New
Rank in Expense Management	#18	#5
Share of voice	0.7%	9.4%
Mentions this run	4	45
Positive in AI answers	50%	58%

The stronger value in each row is marked with a ✓.

Visibility score trend

Weekly runs over the last 60 days

Airbase 0pp · Brex 0pp over 0 weekly runs.

Engine by engine

Brex leads on 3 of 3 engines

ChatGPT

5.4%

32%

AI Mode

44.4%

Perplexity

1.7%

26.9%

AirbaseBrex

Head to head in AI answers

4 engine answers name both brands

0Airbase ranked higher

4Brex ranked higher

Prompt	Engine	Airbase	Brex
How do I choose an expense management tool for a mid-market team?	ChatGPT	#6	#3
Top expense management tool options for B2B SaaS companies	ChatGPT	#4	#3
Top expense management tool options for B2B SaaS companies	Perplexity	#5	#2
Compare the leading Expense Management platforms	ChatGPT	#4	#2

Features, pricing & fit

Dimension	Airbase	Brex
Pricing model	—	Per seat
Entry price	—	Free; paid from $12 per seat / mo
Free plan	—	Yes
Compliance	SOC 1, SOC 2 Type II, ISO 27001:2022	SOC 1 Type II, SOC 2 Type II, PCI DSS, ISO/IEC 27001:2022
Support	—	24/7 live phone and chat support, Named account manager on the Enterprise plan
Founded	2017	2017
Headquarters	San Francisco	San Francisco, CA, USA
Employees	201–500	1,001–5,000
Funding	Series A extension	Investment from Capital One as part of acquisition deal
Best for	Mid-market companies with over 100 employees	Startups, mid-size companies and enterprises that want cards, expenses, bill pay and travel in one platform