Rho vs Brex
Two of twelve models named Rho first on the direct prompt; two named Brex. Rho was named by nine of the twelve models and Brex by twelve and Rho carries 12 labels and Brex 24, so the shares are not directly comparable.
Named in nine categories this edition.
Named in twelve categories this edition.
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
RhoFirst choices, of twelve modelsBrex
Across every category in the September 2026 Edition, Rho and Brex were named in the same answer eighty-one times, of the 106 answers naming Rho and the 539 naming Brex. In those answers Brex took the first choice eleven times and Rho fifteen.
Every model, every framing
| 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 | |
Rho Brex first choice named as an alternative argued againstblank: not namedEach cell is one answer, Rho on the left and Brex on the right.The direct prompt
Rho first, Brex an alternative
2 of 12 modelsBrex was named in the answer but not as the choice, or not at all.Brex first, Rho not the choice
2 of 12 modelsRho was named in the answer but not as the choice, or not at all.Neither was the first choice, one was named
3 of 12 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
5 of 12 modelsThe answer made no first choice from these two in this category.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
What the models said about Rho
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Two of two in this category shown.
“I'd recommend Rho if your priority is an all-in-one platform for banking, cards, bill pay, and spend controls as you scale.” Perplexity Sonar · paraphrase prompt · first choice
“For a mid-sized B2B startup, I'd recommend Rho as your primary banking platform” DeepSeek V4 Flash · paraphrase 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. 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
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.