Business banking · October 2026 Edition
Bank of America vs Brex
Two of fourteen models named Bank of America first on the direct prompt; zero named Brex. Bank of America was named by thirteen of the fourteen models and Brex by twelve and Bank of America carries 36 labels and Brex 22, so the shares are not directly comparable.
Named in two categories this edition.
Named in eleven categories this edition.
First-choice share4%4%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate19%9%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#6#7A position in a field of 14; printed, not drawn.
Labels3622A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Bank of America reading right to left. Rank and label count are printed, not drawn.Mercury vs Bank of America · Mercury vs Brex · Rho vs Bank of America
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 business banking page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Bank of AmericaFirst choices, of fourteen modelsBrex
Direct202 against Brex
Paraphrase021 against Bank of America
Comparative20
Budget-constrained002 against Bank of America
Scale-constrained001 against Bank of America
Negative003 against Bank of America
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 Bank of America and Brex 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 | | |
Bank of America Brex first choice named as an alternative argued againstblank: not namedEach cell is one answer, Bank of America on the left and Brex on the right.The direct prompt
The plain question, one answer per model, grouped by where Bank of America and Brex stood in it.
Bank of America first, Brex not the choice
2 of 14 modelsBrex was named in the answer but not as the choice, or not at all.DeepSeek V4 FlashBank of America, Chase Business Banking alternatives: Capital One
Muse Glimmer 30BBank of America, Chase Business Banking
Neither was the first choice, one was named
8 of 14 modelsThe answer put something else first and named one of the two as an alternative.GPT-5.4 miniJ.P. Morgan Commercial Banking alternatives: Bank of America, Wells Fargo Commercial Banking
Gemini 3.5 FlashRho alternatives: Bank of America, Brex, Chase Business Banking, Mercury, Ramp
Perplexity SonarRho alternatives: Airwallex, Brex, Capital One Enhanced Checking
Grok 4.1 FastChase Business Banking alternatives: Bank of America, Capital One
Qwen 3.7 FlashRamp alternatives: Aspire, Bank of America, Chase Business Banking, Mercury, Oxygen Banking
Kimi K2Chase Performance Business Checking alternatives: Brex, Mercury, Relay
GLM 4.7 FlashXMercury alternatives: Airwallex, Bank of America, Brex, Chase Business Banking
GPT-6 LunaJ.P. Morgan Commercial Banking alternatives: Bank of America, Citibank, U.S. Bank
Neither was named
4 of 14 modelsThe answer made no first choice from these two in this category.Claude Haiku 4.5Chase Business Banking alternatives: Bluevine Premier Business Checking, KeyBank, Relay
Mistral SmallCapital One alternatives: PNC Bank Treasury Enterprise Plan, Truist Bank, Wells Fargo
Llama 4 Maverickno first choice
MiniMax M2.5PNC Bank alternatives: Capital One, First Internet Bank, Rho, Wise Business
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
Brex leads by four points.
Brex4%#6 of 12Bank of America0%#11 of 12Mid-marketThe figures above
Level: the same share of first choices.
Bank of America4%#6 of 14Brex4%#7 of 14Enterprise
What the models said about Bank of America
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“Widely criticized by small businesses for high monthly fees and rigid compliance requirements.” Gemini 3.5 Flash · negative prompt · hard negative
“Long holds on business deposits (7+ days), payment issues, account freezes, poor support.” Grok 4.1 Fast · negative prompt · hard negative
“BOA sees a high volume of CFPB complaints regarding account closures.” Qwen 3.7 Flash · negative prompt · hard negative
“Bank of America Global Commercial Banking with Business Advantage checking and CashPro treasury services for dedicated commercial relationship coverage.” Muse Glimmer 30B · direct prompt · first choice
“Chase and Bank of America are the banks most cited for businesses that need branch access.” Muse Glimmer 30B · comparative prompt · first choice
“Go with JPMorgan Chase or Bank of America as your primary bank.” DeepSeek V4 Flash · direct prompt · first choice
What the models said about Brex
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. One of one in this category shown.
“I would generally recommend Brex if you want an all-in-one platform for banking, cards, treasury, and spend management” Perplexity Sonar · paraphrase prompt · first choice
Also compared
Mercury vs Bank of AmericaMercury vs BrexRho vs Bank of AmericaRho vs BrexBluevine vs Bank of AmericaBluevine vs BrexNovo vs Bank of AmericaNovo vs BrexChase Business Banking vs Bank of AmericaChase Business Banking vs BrexBank of America vs RelayBrex vs RelayAll 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.