Corporate cards · October 2026 Edition
Brex vs Corpay
One of fourteen models named Brex first on the direct prompt; four named Corpay. Brex was named by fourteen of the fourteen models and Corpay by eight and Brex carries 60 labels and Corpay 11, so the shares are not directly comparable.
Named in eleven categories this edition.
Named in three categories this edition.
First-choice share12%7%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate15%0%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#3#4A position in a field of 8; printed, not drawn.
Labels6011A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Brex reading right to left. Rank and label count are printed, not drawn.Ramp was named alongside these two in eleven of the fourteen direct answers. Ramp vs Brex · Ramp vs Corpay · BILL Spend & Expense vs Brex
Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the corporate cards page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
BrexFirst choices, of fourteen modelsCorpay
Direct141 against Brex
Paraphrase30
Comparative31
Budget-constrained103 against Brex
Scale-constrained20
Negative105 against Brex
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where Brex and Corpay stood in it.
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | | ||||
| GPT-5.4 mini | | | | |||
| Gemini 3.5 Flash | | | | | | |
| Perplexity Sonar | | | | |||
| Grok 4.1 Fast | | | | | | |
| Mistral Small | | | | | ||
| DeepSeek V4 Flash | | | | | | |
| Llama 4 Maverick | ||||||
| Qwen 3.7 Flash | | | ||||
| Kimi K2 | | | | | | |
| GLM 4.7 FlashX | | | | |||
| MiniMax M2.5 | | | | | ||
| GPT-6 Luna | | | | | ||
| Muse Glimmer 30B | | | | | |
Brex Corpay first choice named as an alternative argued againstblank: not namedEach cell is one answer, Brex on the left and Corpay on the right.The direct prompt
The plain question, one answer per model, grouped by where Brex and Corpay stood in it.
Brex first, Corpay an alternative
1 of 14 modelsCorpay was named in the answer but not as the choice, or not at all.Mistral SmallAirbase, Brex alternatives: Corpay, Ramp
Corpay first, Brex not the choice
4 of 14 modelsBrex was named in the answer but not as the choice, or not at all.Perplexity SonarCorpay, Ramp alternatives: BILL Spend & Expense, Navan, U.S. Bank Commercial Rewards Card
GLM 4.7 FlashXAirbase, Corpay alternatives: Airwallex, American Express Business Platinum, Ramp
MiniMax M2.5Corpay alternatives: Airbase, Ramp
Muse Glimmer 30BCorpay alternatives: Airbase, U.S. Bank Commercial Rewards Card
Neither was the first choice, one was named
6 of 14 modelsThe answer put something else first and named one of the two as an alternative.GPT-5.4 miniRamp alternatives: BILL Spend & Expense, Brex, Rippling Finance
Gemini 3.5 FlashRamp alternatives: Airbase, BILL Spend & Expense, Brex
Grok 4.1 FastRamp alternatives: BILL Spend & Expense, Brex, Corpay, Payhawk
DeepSeek V4 FlashRamp, Rippling Spend alternatives: Airbase, BILL Spend & Expense, Brex, U.S. Bank Commercial Rewards Card
Kimi K2Ramp alternatives: Brex, Corpay
GPT-6 LunaRamp alternatives: BILL Spend & Expense, Brex
Neither was named
3 of 14 modelsThe answer made no first choice from these two in this category.Claude Haiku 4.5no first choice alternatives: Airbase, BILL Spend & Expense, Ramp, The BILL Divvy Card, Volopay Card
Llama 4 Maverickno first choice
Qwen 3.7 FlashU.S. Bank Commercial Rewards Card alternatives: BILL Spend & Expense, Rho, Rippling Spend
Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.
By buyer segment
The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Mid-marketThe figures above
Enterprise
What the models said about Brex
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Five of five in this category shown.
“Avoid: - Brex (if you're small, international, or need stable limits — the Trustpilot reviews are brutal)” DeepSeek V4 Flash · negative prompt · hard negative
“Brex has a history of pivoting away from small businesses... introduces long-term uncertainty regarding how underwriting requirements and platform fees will evolve.” Gemini 3.5 Flash · negative prompt · soft negative
“For most mid-market B2B companies, Airbase and Brex are the top choices” Mistral Small · direct prompt · first choice
“Ramp, Brex, and Divvy are frequently mentioned by small businesses.” MiniMax M2.5 · budget prompt · first choice
“Choose Ramp/Brex if you want modern automation and card-led spend control.” GPT-5.4 mini · comparative prompt · first choice
What the models said about Corpay
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of four in this category shown.
“The Corpay Mastercard leads for mid-market and enterprise companies that need AP-integrated card payments, managed vendor enrollment, and rebates that scale with spend volume” Muse Glimmer 30B · direct prompt · first choice
“Corpay Mastercard appears to be specifically highlighted as the best for mid-market and enterprise B2B companies” MiniMax M2.5 · direct prompt · first choice
“For larger organizations needing full AP automation and vendor management, Corpay is strongest.” MiniMax M2.5 · comparative prompt · first choice
Also compared
Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.