Small business▼−2Since September 2026: 2% → 0%, −2 points. Inside the 10-point floor: within noise. Read over the models both editions asked.
0%from 2% in September 2026
Inside the floor by 8 pointsRank 16 → 28 of 82
3 categories · RankedRex
22Judge labels
0First choices
0Negative labels
7 / 14Models named it
3Categories
October 2026 Edition. Every number here is derived from the raw labels under vendor table v2026-10.7, every buyer segment counted.
Best standing
0% in Cash application for mid-market buyers
Rank 31 of 83 in the mid-market standing
0 of 14 models made it the first choice on the direct prompt; 0% of its 7 labels there were negative.
By buyer segmentRead the same way at every buyer size.
Small business31 of 88
0%3 labels
under the label threshold
Mid-market31 of 83
0%7 labels
under the label threshold
Enterprise20 of 62
0%4 labels
under the label threshold
In cash application · each standing computed within its segment · bars are 0 to 100 · the accent bar is the product's own best reading
Standing by category
Every category where a model named Rex for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.
| Category | Function | Share | Rank | Negative rate | Labels | Quadrant | Since September 2026 |
|---|---|---|---|---|---|---|---|
| Cash application | Receivables and billing | 0% | 31 of 83 | 0% | 7 | under 10 labels · led by Versapay at 9% | =heldSince September 2026: 0% → 0%, ±0 points. Inside the 10-point floor: within noise. Read over the models both editions asked. |
| B2B credit management | Receivables and billing | 0% | 39 of 108 | 0% | 2 | under 10 labels · led by Chaser at 16% | =heldSince September 2026: 0% → 0%, ±0 points. Inside the 10-point floor: within noise. Read over the models both editions asked. |
| Accounts receivable automation | Receivables and billing | 0% | 42 of 79 | 0% | 1 | under 10 labels · led by Upflow at 17% | newNew since September 2026: not ranked then, 0% now. |
Movement
Since September 2026, Rex held within the floor in all three categories: no change cleared 10 points.
Best category · Cash application · by segment
Mid-market=heldSince September 2026: 0% → 0%, ±0 points. Inside the 10-point floor: within noise. Read over the models both editions asked.
0%from 0% in September 2026
Inside the floor by 10 pointsRank 25 → 29 of 79
Enterprise=heldSince September 2026: 0% → 0%, ±0 points. Inside the 10-point floor: within noise. Read over the models both editions asked.
0%from 0% in September 2026
Inside the floor by 10 pointsRank 18 → 16 of 58
All categories · Mid-market
| Category | September 2026 | Now | Change | Reading | Rank |
|---|---|---|---|---|---|
| Cash application | 0% | 0% | =heldSince September 2026: 0% → 0%, ±0 points. Inside the 10-point floor: within noise. Read over the models both editions asked. | Within noise | Rank 25 → 31 of 83 |
| B2B credit management | 0% | 0% | =heldSince September 2026: 0% → 0%, ±0 points. Inside the 10-point floor: within noise. Read over the models both editions asked. | Within noise | Rank 27 → 39 of 108 |
| Accounts receivable auto | 0% | 0% | newNew since September 2026: not ranked then, 0% now. | New this edition | Rank 42 of 79, unchanged |
Shares here are read over the models both editions asked, so they can differ by a point or two from the standing above, which counts every model in this edition.
The floor is 10 points of share, measured: how far the models move a leader on their own when the same questions are asked twice with nothing changed. A larger change is movement; a smaller one is noise, and both are shown. Movement is read over the twelve models both editions asked; GPT-6 Luna, Muse Glimmer 30B joined this edition and are in the standing but not yet in the comparison. How the floor is measured · The editions
By model
How each model treated Rex across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.ShowHide
By model
How each model treated Rex across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.
ShowHide| Model | First choice | Alternative | Mention | Negative | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 0 | 0 | 0 | 0 | 0 |
| GPT-5.4 mini | 0 | 0 | 0 | 0 | 0 |
| Gemini 3.5 Flash | 0 | 0 | 0 | 0 | 0 |
| Perplexity Sonar | 0 | 1 | 0 | 0 | 1 |
| Grok 4.1 Fast | 0 | 1 | 3 | 0 | 4 |
| Mistral Small | 0 | 0 | 0 | 0 | 0 |
| DeepSeek V4 Flash | 0 | 1 | 2 | 0 | 3 |
| Llama 4 Maverick | 0 | 0 | 1 | 0 | 1 |
| Qwen 3.7 Flash | 0 | 0 | 0 | 0 | 0 |
| Kimi K2 | 0 | 0 | 0 | 0 | 0 |
| GLM 4.7 FlashX | 0 | 0 | 0 | 0 | 0 |
| MiniMax M2.5 | 0 | 0 | 0 | 0 | 0 |
| GPT-6 Luna | 0 | 0 | 0 | 0 | 0 |
| Muse Glimmer 30B | 0 | 0 | 1 | 0 | 1 |
By framing
Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.
FramingLabels by classFirst choices
Direct7 labelsNone
Paraphrase0 labelsNone
Comparative7 labels1not counted in share
Budget-constrained1 labelNone
Scale-constrained3 labelsNone
Negative4 labelsNone
First choiceAlternativeMentionNegative22 labels in all, every segment counted; 0 of the 1 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.
What the models said for it
Verbatim evidence the judge attached to positive labels.
“good for mid-market teams that want visibility and dunning and are comfortable with coverage of the common cases rather than maximum depth” Perplexity Sonar · Cash application · direct prompt · alternative
“Better bets: Look for end-to-end ... like agentic AI platforms (Rex, Billtrust for enterprises), but trial first.” Grok 4.1 Fast · Accounts receivable auto · negative prompt · alternative
“If your risk is with existing accounts → Rex” DeepSeek V4 Flash · B2B credit management · comparative prompt · alternative
And against it
Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.
No model argued against it.
Named alongside
The products named in the same answers as Rex, over the 22 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Rex was named but was not.ShowHide
Named alongside
The products named in the same answers as Rex, over the 22 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Rex was named but was not.
ShowHideProductSame answerTook the first choice insteadHead to head
A head-to-head page exists where both products are among a category's top eight. The other rows are the same fact without a page behind them, so they link to the product instead.
What carried it into the answer
The sites and pages cited by the answers that named Rex. A fact about retrieval, not a lever on the model.
Citations exist only for the models that return a source list, five of the fourteen in this edition, so these counts come from 22 of the 22 answers that named Rex and are not a share of its labels.
Domains cited
rex.incYour site22
highradius.com15
chaserhq.com14
bluecopa.com12
worldmetrics.org11
upflow.io9
cashbook.com8
emagia.com8
itechguides.com8
g2.com7
Ninety-two of the 114 domain citations in answers naming Rex came from somebody else's page.
Pages cited
Pages are listed as the models cited them.
Search and answers
rex.inc is not in Google's top ten for any of the category's searches. In the answers, Rex takes 0% of first choices and Versapay takes 9%.ShowHide
Search and answers
rex.inc is not in Google's top ten for any of the category's searches. In the answers, Rex takes 0% of first choices and Versapay takes 9%.
ShowHideIn search
Google, US estimatesPosition for “cash application tools”
–
not in the top ten
Position for “cash application software”
–
not in the top ten
- Searches for its name, Google
- 74,000 a month (“rex”)
- AI search demand for its name, est.
- 125,167 a month
- Organic visits to its site
- about 235 a month
- Searches its site ranks for
- 950 · 4 in the top three
- Sites linking to it
- 81
- Paid Google search
- No ads found in the estimate; that does not mean it runs none
Ads on Google
None found in Google's ad transparency records for the US
In answers
This editionShare of first choices
0%
rank 31 of 83 in cash application
Segment leader
9%
Versapay
- First choices
- 0 across its categories
- Named in
- 22 answers
- Its own site cited
- in 22 of the answers that named it
Search figures are US estimates from DataForSEO, read September 28, 2026; AI search demand is its modeled, directional estimate, not a count of queries to any assistant. The answers are this edition's. Two measurements side by side: neither is read as the cause of the other.
What it publishes
ShowHide
What it publishes
ShowHideAddresses on rex.inc
243
subdomains included
Content
219
counted in the table below
Documentation
1
Product · Integration
1 · 0
| Kind | Pages | Last 90 days | 2025-10 to 2026-09 | Latest | Categories named |
|---|---|---|---|---|---|
| Blog | 128 | 16 | 2026-09-03 | Cash application, Cash flow forecasting | |
| Glossary or explainer | 38 | 1 | 2026-09-03 | Cash application, Accounts receivable auto | |
| Report or ebook | 25 | 0 | 2026-06-16 | ||
| Comparison | 16 | 1 | 2026-07-19 | ||
| Template or tool | 11 | 0 | 2026-06-10 | ||
| Case study | 1 | 1 | 2026-09-03 |
Most recent
- 2026-09-03Comparisons blog
- 2026-09-03Rex | Guides & Playbooks blog
- 2026-09-03Industries blog
- 2026-09-03Ar metrics blog
- 2026-09-03Ai ar blog
- 2026-09-03Ar automation blog
How it is countedHide how it is counted
Every page rex.inc exposes, subdomains included. Kind is read from the address and title. The last 90 days, the latest date and the twelve months count pages by when they were published, from the site's feeds, a date in the address, or the page's own publication date, read from up to a hundred of its most recently changed pages; a page that says only when it last changed is counted in its kind but not in when, so the recent counts are a floor, and a kind none of whose pages gives a publication date reads undated. Read September 29, 2026.
Follow Rex
An email the morning each edition publishes: where this product moved, where it held, and by how much against the noise floor. One address, confirmed by a click; a stop link in every email.
Already following? Everything you follow, with a stop for each.
The company
Rex is its own company.ShowHide
The company
Rex is its own company.
ShowHideIn its own words
Stated by the vendor, not checked- Positioning
- The AI operations partner for order-to-cash
- For
- Enterprise finance leaders
- Price stated
- Outcome and SLA-based pricing. rex.inc
- Integrations claimed
- 10 rex.inc
- Certifications
- SOC 2 Type II (monitoring)GDPR
- Hosting
- EU data residency
- Customers named
- SynthesiaBoeing
- Not stated on the pages read
- Starting price, free plan or trial
What Rex's own pages state, read September 28, 2026: rex.inc, rex.inc/pricing, trust.rex.inc, rex.inc/platform, rex.inc/customers. A claimed page can correct any of them.
Is this your product?
Claim this page
Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when Rex's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as Rex, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.
What a new claim receivesHide what a new claim receives
A new claim receives the current edition's vendor brief for Rex by email, built from the raw record of the edition. It shows:
- where Rex is named, by buyer and by framing, and which cells hold its first choices;
- the claims the models make when they name it, ranked, with the strongest and the weakest quoted;
- its vocabulary against the segment leader's, and the pages the models cited;
- who was chosen in the answers that did not name Rex, and every reason the record gives;
- a battlecard for each top rival: the head-to-head split, why they win, and the reservation quoted against them;
- one page of published figures cleared to show a buyer.