Business banking · September 2026 Edition
Brex vs U.S. Bank
Two of twelve models named Brex first on the direct prompt; zero named U.S. Bank. Brex was named by twelve of the twelve models and U.S. Bank by eight and Brex carries 24 labels and U.S. Bank 16, so the shares are not directly comparable.
Named in twelve categories this edition.
Named in three categories this edition.
First-choice share8%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate8%6%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#5#7A position in a field of 13; printed, not drawn.
Labels2416A 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.Chase Business Banking was named alongside these two in nine of the twelve direct answers. Mercury vs Brex · Mercury vs U.S. Bank · Bluevine vs Brex
Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all twelve 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 business banking page.
By framing
How many of the twelve models made each the first choice, per way of asking, and how many argued against it.
BrexFirst choices, of twelve modelsU.S. Bank
Direct20
Paraphrase101 against Brex
Comparative00
Budget-constrained01
Scale-constrained00
Negative001 against Brex · 1 against U.S. Bank
Bars are first choices, 0 to 12 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to twelve.
Every model, every framing
The seventy-two answers behind the chart above, one cell each: where Brex and U.S. Bank 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 | |
Brex U.S. Bank first choice named as an alternative argued againstblank: not namedEach cell is one answer, Brex on the left and U.S. Bank on the right.The direct prompt
The plain question, one answer per model, grouped by where Brex and U.S. Bank stood in it.
Brex first, U.S. Bank an alternative
2 of 12 modelsU.S. Bank was named in the answer but not as the choice, or not at all.Claude Haiku 4.5Brex alternatives: Airwallex, Chase Business Banking, U.S. Bank
DeepSeek V4 FlashBrex alternatives: Bank of America, Chase Business Banking, HSBC, Mercury, Relay, U.S. Bank, Wells Fargo
Neither was the first choice, one was named
5 of 12 modelsThe answer put something else first and named one of the two as an alternative.GPT-5.4 miniChase Business Banking alternatives: Bank of America, TD Bank, U.S. Bank
Gemini 3.5 FlashRho alternatives: Bank of America, Brex, Chase Business Banking, Fifth Third Bank, Mercury, PNC Bank
Perplexity SonarRho alternatives: Bluevine, Brex, Relay
Grok 4.1 FastBank of America, Chase Business Banking alternatives: Brex, PNC Bank, Rho
Kimi K2Chase Business Banking, Mercury alternatives: Brex, First Internet Bank
Neither was named
5 of 12 modelsThe answer made no first choice from these two in this category.Mistral SmallAxos Bank, PNC Bank alternatives: First Internet Bank, Revolut Business, Wise Business
Llama 4 Maverickno first choice
Qwen 3.7 FlashBluevine alternatives: Airwallex, Chase Business Banking, Relay
GLM 4.7 FlashXChase Business Banking alternatives: Airwallex, Qonto, Wise Business
MiniMax M2.5Chase Business Banking alternatives: Airwallex, Bank of America, Barclays, HSBC, Mercury, NatWest, Rho, Silicon Valley Bank, Wells Fargo
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. Three of three in this category shown.
“Brex abruptly decided to stop servicing traditional small businesses, giving tens of thousands ... just 60 days to move their funds” Gemini 3.5 Flash · negative prompt · hard negative
“Brex is best if you run a mid-market company and want a corporate card plus treasury and vault services in one platform.” Claude Haiku 4.5 · direct prompt · first choice
“Brex offers both banking and corporate card services designed for venture-backed startups and mid-market companies” Claude Haiku 4.5 · paraphrase prompt · first choice
What the models said about U.S. Bank
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of four in this category shown.
“Caution: Accused of opening unauthorized accounts, rated poorly across review platforms” Kimi K2 · negative prompt · soft negative
“U.S. Bank Business Essentials stands out as one of the only free business checking accounts offered by a big brick-and-mortar bank” Claude Haiku 4.5 · budget prompt · first choice
“expands on basic business options, offering the ability to grow money through money market accounts and CDs” Claude Haiku 4.5 · direct prompt · alternative
“Best if you're in U.S. Bank's middle-market sweet spot: U.S. Bank Commercial Banking” GPT-5.4 mini · direct prompt · alternative
Also compared
Mercury vs BrexMercury vs U.S. BankBluevine vs BrexBluevine vs U.S. BankChase Business Banking vs BrexChase Business Banking vs U.S. BankRho vs BrexRho vs U.S. BankBrex vs NovoBrex vs Bank of AmericaNovo vs U.S. BankU.S. Bank vs Bank of AmericaAll twenty-eight head-to-head pages and the full business banking standing
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.