Finance AI Index
Index Receivables and billing Cash application › Upflow vs Esker
Cash application · September 2026 Edition

Upflow vs Esker

Two of twelve models named Upflow first on the direct prompt; three named Esker. Upflow was named by seven of the twelve models and Esker by eleven and Upflow carries 13 labels and Esker 22, so the shares are not directly comparable.

Upflow

accepted challenger

Named in five categories this edition.

Esker

criticized challenger

Named in six categories this edition.

First-choice share9%7%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate0%27%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#3#5A position in a field of 10; printed, not drawn.
Labels1322A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Upflow reading right to left. Rank and label count are printed, not drawn.HighRadius was named alongside these two in seven of the twelve direct answers. HighRadius vs Upflow · HighRadius vs Esker · Versapay vs Upflow

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 cash application page.

By framing

How many of the twelve models made each the first choice, per way of asking, and how many argued against it.
UpflowFirst choices, of twelve modelsEsker
Direct23
Paraphrase10
Comparative00
Budget-constrained104 against Esker
Scale-constrained001 against Esker
Negative001 against Esker
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 Upflow and Esker stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
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
Upflow Esker first choice named as an alternative argued againstblank: not namedEach cell is one answer, Upflow on the left and Esker on the right.

The direct prompt

The plain question, one answer per model, grouped by where Upflow and Esker stood in it.

Upflow first, Esker not the choice

2 of 12 modelsEsker was named in the answer but not as the choice, or not at all.
Mistral SmallUpflow alternatives: Bluecopa, Cashbook, Chaser
Llama 4 MaverickUpflow alternatives: Bluecopa, Cashbook, Chaser, Lunos

Esker first, Upflow not the choice

3 of 12 modelsUpflow was named in the answer but not as the choice, or not at all.
Grok 4.1 FastEsker alternatives: Billtrust, Gaviti, HighRadius, Quadient Accounts Receivable
DeepSeek V4 FlashEsker, HighRadius alternatives: Gaviti, Monk, Versapay
GLM 4.7 FlashXEsker, Kolleno alternatives: Chaser, Gaviti, Monk, Quadient Accounts Receivable, Serrala, Stuut, Transparency / Transformance, Versapay

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.
Claude Haiku 4.5Versapay alternatives: Billtrust, Paystand, Quadient Accounts Receivable, Upflow
Gemini 3.5 FlashQuadient Accounts Receivable alternatives: Stuut, Tesorio, Upflow, Versapay
Perplexity SonarHighRadius alternatives: Billtrust, Kolleno, Upflow

Neither was named

4 of 12 modelsThe answer made no first choice from these two in this category.
GPT-5.4 miniHighRadius alternatives: BlackLine Cash Application, Sidetrade
Qwen 3.7 FlashHighRadius alternatives: AtoBi, BlackLine Cash Application, Trintech
Kimi K2HighRadius alternatives: Billtrust, Chaser, Versapay
MiniMax M2.5HighRadius alternatives: Monk

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
Upflow leads by four points.
Upflow4%#4 of 10
Esker0%#8 of 10
The full small business standing →
Mid-marketThe figures above
Upflow leads by two points.
Upflow9%#3 of 10
Esker7%#5 of 10
The full mid-market standing →
Enterprise
Upflow leads by three points.
Upflow5%#– of 7
Esker3%#3 of 7
The full enterprise standing →

What the models said about Upflow

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Two of two in this category shown.

“Upflow - Good fit for mid-sized and scaling companies (typically $10M-$500M revenue) that need cash application to feed directly into AR and collections” Llama 4 Maverick · direct prompt · first choice
“Upflow is often recommended as the best overall solution due to its seamless integration with collections and AR workflows” Mistral Small · direct prompt · first choice

What the models said about Esker

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 the usual enterprise leaders like HighRadius, Billtrust, and Esker” Perplexity Sonar · budget prompt · hard negative
“Enterprise-class, custom-priced, typically six figures annually.” DeepSeek V4 Flash · budget prompt · hard negative
“1. Esker (G2: 4.3–4.5/5; Gartner Leader in Invoice-to-Cash 2024) ... Enterprise-grade AI automation for cash matching” Grok 4.1 Fast · direct prompt · first choice
“Esker or HighRadius are the safest bets if you want a proven, scalable platform” DeepSeek V4 Flash · direct prompt · first choice
“Kolleno and Esker are strong, mid‑market‑focused all‑rounders.” GLM 4.7 FlashX · direct 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.